Evidence map›Paper›PMID 19812341›Full record

ArticleThe Journal of neuroscience : the official journal of the Society for Neuroscience2009

Cocaine exposure in utero alters synaptic plasticity in the medial prefrontal cortex of postnatal rats.

Hui Lu, Byungkook Lim, Mu-ming Poo

Open access · bronzeAbstract read
In one paragraph

Article in The Journal of neuroscience : the official journal of the Society for Neuroscience, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 27 papers.

0numbers the graph read from it
0cells of the map it votes in
27citing papers in PubMed
2.2field-weighted citation impact, top 13% 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

27 citing papers in PubMed, 52 citations in OpenAlex.

  1. Article
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  8. Review
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  10. Cocaine-induced neurodevelopmental deficits and underlying mechanisms.Birth defects research. Part C, Embryo today : reviews · 2016
    Review
  11. Article
  12. Article
  13. GABAAα1-mediated plasticity in the orbitofrontal cortex regulates context-dependent action selection.Neuropsychopharmacology : official publication of the American College of Neuropsychopharmacology · 2015
    Article
  14. Article
  15. Spike-timing-dependent BDNF secretion and synaptic plasticity.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2014
    Article
  16. Developmental origins of brain disorders: roles for dopamine.Frontiers in cellular neuroscience · 2013
    Review
  17. Article
  18. Article
  19. Article
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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

3 authors at 3 institutions in 3 countries.

Hui LuDepartment of Molecular and Cell Biology, University of California, Berkeley, Berkeley, CA 94720, USA.
Byungkook Lim
Mu-ming Poo
Institute of Neurobiology · BGUniversity of California, Berkeley · USValue Addition Institute · UG

Funding

Spike Timing-Dependent Plasticity of Neural CircuitsR01NS036999 · NINDS · UNIVERSITY OF CALIFORNIA SAN DIEGO · PI POO, MU-MING · 1998 to 2015
$3.8M
NINDS NIH HHS NS36999
6 · The paper itself

Abstract

Cocaine exposure during pregnancy causes abnormality in fetal brain development, leading to cognitive dysfunction of the offspring, but the underlying cellular mechanism remains mostly unclear. In this study, we examined synaptic functions in the medial prefrontal cortex (mPFC) of postnatal rats that were exposed to cocaine in utero, using whole-cell recording from mPFC layer V pyramidal neurons in acute brain slices. Cocaine exposure in utero resulted in a facilitated activity-induced long-term potentiation (LTP) of excitatory synapses on these pyramidal neurons and an elevated neuronal excitability in postnatal rat pups after postnatal day 15 (P15). This facilitated LTP could be primarily attributed to the reduction of GABAergic inhibition. Biochemical assays of isolated mPFC tissue from postnatal rats further showed that cocaine exposure in utero caused a marked reduction in the surface expression of GABA(A) receptor subunits alpha1, beta2, and beta3, but had no effect on glutamate receptor subunit GluR1. Both facilitated LTP and reduced surface expression of GABA(A) receptors persisted in rats up to at least P42. Finally, the behavioral consequence of cocaine exposure in utero was reflected by the reduction in the sensitivity of locomotor activity in postnatal rats to cocaine and the dopamine receptor agonist apomorphine. Since the mPFC is an important part of the reward circuit in the rat brain and plays important roles in cognitive functions, these findings offer new insights into the cellular mechanism underlying the adverse effects of cocaine exposure in utero on brain development and cognitive functions.

Indexed as

Prenatal Exposure Delayed EffectsAnimalsApomorphineCocaineFemaleLocomotionLong-Term PotentiationMotor ActivityNeuronal PlasticityPatch-Clamp TechniquesPrefrontal CortexPregnancyPyramidal CellsRatsRats, Sprague-DawleyReceptors, GABA-AApomorphineCocaineReceptors, GABA-A

Identifiers

PMID19812341
PMCPMC3849732
OpenAlexW2059287712

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.