Evidence map›Paper›PMID 18238806›Full record

ArticleThe Journal of physiology2008

Impaired GABAergic inhibition in the visual cortex of brain-derived neurotrophic factor heterozygous knockout mice.

Ismail Abidin, Ulf T Eysel, Volkmar Lessmann, Thomas Mittmann

Open access · greenAbstract read
In one paragraph

Article in The Journal of physiology, 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 38 papers.

0numbers the graph read from it
0cells of the map it votes in
38citing papers in PubMed
1.7field-weighted citation impact, top 19% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

38 citing papers in PubMed, 69 citations in OpenAlex.

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  11. Postnatal TrkB ablation in corticolimbic interneurons induces social dominance in male mice.Proceedings of the National Academy of Sciences of the United States of America · 2018
    Article
  12. Interindividual variability in response to continuous theta-burst stimulation in healthy adults.Clinical neurophysiology : official journal of the International Federation of Clinical Neurophysiology · 2017
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  13. Epigenetic Regulation of BDNF Gene during Development and Diseases.International journal of molecular sciences · 2017
    Review
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

4 authors at 2 institutions in 1 country.

Ismail AbidinDepartment of Neurophysiology, MA 4/149, Ruhr-University Bochum, D-44780 Bochum, Germany.
Ulf T Eysel
Volkmar Lessmann
Thomas Mittmann
Ruhr University Bochum · DEOtto-von-Guericke University Magdeburg · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Brain derived neurotrophic factor (BDNF) promotes the formation, maturation and stabilization of inhibitory synapses in the central nervous system. In addition, BDNF has been suggested to regulate the critical period for ocular dominance plasticity in the visual system. Here we further evaluated the role of BDNF in the visual cortex by studying the GABAergic synaptic transmission under conditions of chronically reduced levels of BDNF. Whole-cell patch-clamp recordings were performed from pyramidal neurons located in layers II/III of visual cortical slices in heterozygous BDNF knockout mice (BDNF (+/-)) and their wild-type littermates at the age of 21-25 days. The BDNF (+/-) mice showed a decreased frequency and amplitude of miniature inhibitory postsynaptic currents (mIPSCs) as well as a reduced amplitude and prolonged decay time constant of evoked IPSCs. Further analyses indicated an impaired presynaptic GABAergic function in BDNF (+/-) mice, as shown by the decreased release probability, steady-state release and synchronous release of GABA. However, the number of functional release sites remained unchanged. In line with these observations, an impaired glutamate-driven GABA release was observed in BDNF (+/-) mice. Furthermore, the overall balance in the strength of cortical excitation to inhibition shifted towards a decreased inhibition. Finally, the reversal potential for chloride-mediated evoked IPSCs was not affected. These findings suggested that chronically reduced levels of BDNF strongly impair the GABAergic inhibitory function in visual cortex by altering postsynaptic properties and by reducing presynaptic GABA release as well as the overall strength of inhibition onto pyramidal neurons within the cortical network. These impairments of inhibitory function are compatible with a rather immature status of the GABAergic system in BDNF (+/-) mice, which supports the hypothesis that the level of expression for BDNF critically affects maturation and function of the GABAergic inhibition.

Indexed as

HeterozygoteAction PotentialsAnimalsAnimals, NewbornBrain-Derived Neurotrophic Factorgamma-Aminobutyric AcidInhibitory Postsynaptic PotentialsMiceMice, KnockoutMice, TransgenicNeuronal PlasticityPatch-Clamp TechniquesPyramidal CellsSynaptic TransmissionVisual CortexBrain-Derived Neurotrophic Factorgamma-Aminobutyric Acid

Identifiers

PMID18238806
PMCPMC2375720
OpenAlexW1671390315

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.