Evidence map›Paper›PMID 24177173›Full record

ArticleBrain research bulletin2014

Contaminating levels of zinc found in commonly-used labware and buffers affect glycine receptor currents.

Garrett L Cornelison, S John Mihic

Abstract read
In one paragraph

Article in Brain research bulletin, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.

0numbers the graph read from it
0cells of the map it votes in
10citing papers in PubMed
0.6field-weighted citation impact, top 32% 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

10 citing papers in PubMed, 16 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Review
  5. Article
  6. Interactions between Zinc and Allosteric Modulators of the Glycine Receptor.The Journal of pharmacology and experimental therapeutics · 2017
    Article
  7. Article
  8. Article
  9. Article
  10. 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

2 authors at 1 institution in 1 country.

Garrett L CornelisonDepartment of Neuroscience, Division of Pharmacology and Toxicology, Waggoner Center for Alcohol & Addiction Research, Institutes for Neuroscience and Cell & Molecular Biology, University of Texas at Austin, Austin, TX 78712, USA.
S John MihicDepartment of Neuroscience, Division of Pharmacology and Toxicology, Waggoner Center for Alcohol & Addiction Research, Institutes for Neuroscience and Cell & Molecular Biology, University of Texas at Austin, Austin, TX 78712, USA. Electronic address: mihic@austin.utexas.edu.
The University of Texas at Austin · US

Funding

Novel molecular and cellular approaches for alcoholism medication developmentP01AA020683 · NIAAA · UNIVERSITY OF TEXAS AT AUSTIN · PI MIHIC, S JOHN · 2012 to 2016
$3.3M
NIAAA NIH HHS 5P01AA020683NIAAA NIH HHS P01 AA020683
6 · The paper itself

Abstract

Zinc is an allosteric modulator of glycine receptor function, enhancing the effects of glycine at nM to low μM concentrations, and inhibiting its effects at higher concentrations. Because of zinc's high potency at the glycine receptor, there exists a possibility that effects attributed solely to exogenously-applied glycine in fact contain an undetected contribution of zinc acting as an allosteric modulator. We found that glycine solutions made up in standard buffers and using deionized distilled water produced effects that could be decreased by the zinc chelator tricine. This phenomenon was observed in three different vials tested and persisted even if vials were extensively washed, suggesting the zinc was probably present in the buffer constituents. In addition, polystyrene, but not glass, pipets bore a contaminant that enhanced glycine receptor function and that could also be antagonized by tricine. Our findings suggest that without checking for this effect using a chelator such as tricine, one cannot assume that responses elicited by glycine applied alone are not necessarily also partially due to some level of allosteric modulation by zinc.

Indexed as

BuffersEquipment ContaminationAnimalsPatch-Clamp TechniquesReceptors, GlycineXenopusZincBuffersReceptors, GlycineZincAllosteric modulationEC5effective concentration producing 5% of maximal effectElectrophysiologyglycine receptorGlycine receptorGlyRICP-MSinductively-coupled plasma mass spectrometerMBSmodified Barth's salineN,N,N′,N′-tetrakis(2-pyridylmethyl)ethane-1,2-diamineTPENTritricineTricineXenopus oocytesZinc

Identifiers

PMID24177173
PMCPMC3885322
OpenAlexW2005158885

What OpenQuestion holds

Textmetadata
LicenceTDM
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.