Evidence map›Paper›PMID 10418163›Full record

ArticleProceedings. Biological sciences1999

Low expression of the ClC-2 chloride channel during postnatal development: a mechanism for the paradoxical depolarizing action of GABA and glycine in the hippocampus.

M Mladinić, A Becchetti, F Didelon, A Bradbury, E Cherubini

Open access · greenAbstract read
In one paragraph

Article in Proceedings. Biological sciences, 1999. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed
0.4field-weighted citation impact, top 44% 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

12 citing papers in PubMed, 28 citations in OpenAlex.

  1. Glial Chloride Channels in the Function of the Nervous System Across Species.Advances in experimental medicine and biology · 2021
    Article
  2. Article
  3. Mutations affecting GABAergic signaling in seizures and epilepsy.Pflugers Archiv : European journal of physiology · 2010
    Review
  4. ClC-2 voltage-gated channels constitute part of the background conductance and assist chloride extrusion.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2010
    Article
  5. Article
  6. Article
  7. Article
  8. Article
  9. Article
  10. Article
  11. Article
  12. Antioxidant N-acetylcysteine modifies the purinergic modulation of spontaneous postsynaptic potentials in the newborn rat hippocampus.Doklady biological sciences : proceedings of the Academy of Sciences of the USSR, Biological sciences sections
    Article
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

5 authors at 1 institution in 1 country.

M MladinićINFM Unit, International School for Advanced Studies (SISSA), Trieste, Italy.
A Becchetti
F Didelon
A Bradbury
E Cherubini
Scuola Internazionale Superiore di Studi Avanzati · IT

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

In early postnatal development, during the period of synapse formation, gamma-aminobutyric acid (GABA) and glycine, the main inhibitory transmitters in the adult brain, paradoxically excite and depolarize neuronal membranes by an outward flux of chloride. The mechanisms of chloride homeostasis are not fully understood. It is known that in adult neurons intracellular chloride accumulation is prevented by a particular type of chloride channel, the ClC-2. This channel strongly rectifies in the inward direction at potentials negative to ECl thus ensuring chloride efflux. We have tested the hypothesis that in the developing hippocampus, a differential expression or regulation of ClC-2 channels may contribute to the depolarizing action of GABA and glycine. We have cloned a truncated form of ClC-2 (ClC-2nh) from the neonatal hippocampus which lacks the 157 bp corresponding to exon 2. In situ hybridization experiments show that ClC-2nh is the predominant form of ClC-2 mRNA in the neonatal brain. ClC-2nh mRNA is unable to encode a full-length protein due to a frameshift, consequently it does not induce any currents upon injection into Xenopus oocytes. Low expression of the full-length ClC-2 channel, could alter chloride homeostasis, lead to accumulation of [Cl-]i and thereby contribute to the depolarizing action of GABA and glycine during early development.

Indexed as

Gene Expression Regulation, DevelopmentalAgingAmino Acid SequenceAnimalsAnimals, NewbornChloride ChannelsCloning, MolecularFemalegamma-Aminobutyric AcidGene LibraryGlycineHippocampusIn Situ HybridizationMolecular Sequence DataOocytesPolymerase Chain ReactionChloride Channelsgamma-Aminobutyric AcidGlycineRecombinant ProteinsRNA, Messenger

Identifiers

PMID10418163
PMCPMC1690058
OpenAlexW2038963854

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.