Evidence map›Paper›PMID 22339672›Full record

ArticleJournal of neurochemistry2012

Cytosolic acidification and intracellular zinc release in hippocampal neurons.

Lech Kiedrowski

Open access · bronzeAbstract read
In one paragraph

Article in Journal of neurochemistry, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 25 papers.

0numbers the graph read from it
0cells of the map it votes in
25citing papers in PubMed
2.7field-weighted citation impact, top 11% 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

25 citing papers in PubMed, 37 citations in OpenAlex.

  1. Review
  2. Metallothionein III Mediates CaThe Journal of neuroscience : the official journal of the Society for Neuroscience · 2025
    Article
  3. Article
  4. Article
  5. Review
  6. Article
  7. Article
  8. Article
  9. Tools and techniques for illuminating the cell biology of zinc.Biochimica et biophysica acta. Molecular cell research · 2021
    Review
  10. The change of intracellular zinc distribution after strong acid challenge.International journal of physiology, pathophysiology and pharmacology · 2021
    Article
  11. Article
  12. Elucidating the HInternational journal of molecular sciences · 2020
    Article
  13. Intracellular ZnScientific reports · 2019
    Article
  14. Review
  15. Review
  16. Article
  17. The Emerging Role of Zinc in the Pathogenesis of Multiple Sclerosis.International journal of molecular sciences · 2017
    Review
  18. Article
  19. Review
  20. 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

1 author at 1 institution in 1 country.

Lech KiedrowskiDepartments of Psychiatry and Pharmacology, The Psychiatric Institute, The University of Illinois at Chicago, Chicago, Illinois 60612, USA. lkiedr@psych.uic.edu
University of Illinois Chicago · US

Funding

Role of NCKX2 in the activation of toxic Zn2+ influx in ischemic neuronsR21NS065305 · NINDS · UNIVERSITY OF ILLINOIS AT CHICAGO · PI KIEDROWSKI, LECH · 2009 to 2010
$392k
Characterization of D3cpv cameleon sensitivity to zincR03NS077095 · NINDS · UNIVERSITY OF ILLINOIS AT CHICAGO · PI KIEDROWSKI, LECH · 2011 to 2012
$159k
NINDS NIH HHS 1R21 NS065305NINDS NIH HHS 5R03 NS077095NINDS NIH HHS R03 NS077095NINDS NIH HHS R21 NS065305
6 · The paper itself

Abstract

In neurons exposed to glutamate, Ca²⁺ influx triggers intracellular Zn²⁺ release via an as yet unclear mechanism. As glutamate induces a Ca²⁺-dependent cytosolic acidification, the present work tested the relationships among intracellular Ca²⁺ concentration ([Ca²⁺](i)), intracellular pH (pH(i) ), and [Zn²⁺](i). Cultured hippocampal neurons were exposed to glutamate and glycine (Glu/Gly), while [Zn²⁺](i), [Ca²⁺](i) and pH(i) were monitored using FluoZin-3, Fura2-FF, and 2',7'-bis-(2-carboxyethyl)-5(6)-carboxyfluorescein, respectively. Glu/Gly applications decreased pH(i) to 6.1 and induced intracellular Zn²⁺ release in a Ca²⁺-dependent manner, as expected. The pH(i) drop reduced the affinity of FluoZin-3 and Fura-2-FF for Zn²⁺. The rate of Glu/Gly-induced [Zn²⁺](i) increase was not correlated with the rate of [Ca²⁺](i) increase. Instead, the extent of [Zn²⁺](i) elevations corresponded well to the rate of pH(i) drop. Namely, [Zn²⁺](i) increased more in more highly acidified neurons. Inhibiting the mechanisms responsible for the Ca²⁺-dependent pH(i) drop (plasmalemmal Ca²⁺ pump and mitochondria) counteracted the Glu/Gly-induced intracellular Zn²⁺ release. Alkaline pH (8.5) suppressed Glu/Gly-induced intracellular Zn²⁺ release whereas acidic pH (6.0) enhanced it. A pH(i) drop to 6.0 (without any Ca²⁺ influx or glutamate receptor activation) led to intracellular Zn²⁺ release; the released Zn²⁺ (free Zn²⁺ plus Zn²⁺) bound to Fura-2FF and FluoZin-3) reached 1 μM.

Indexed as

Culture MediaAlgorithmsAnimalsCalciumCells, CulturedChelating AgentsCytosolFluoresceinsFluorescent DyesGlutamic AcidHippocampusHydrogen-Ion ConcentrationIndicators and ReagentsMiceMice, Inbred C57BLMicroscopy, Fluorescence2',7'-bis(carboxyethyl)-5(6)-carboxyfluoresceinCalciumChelating AgentsCulture MediaFluoresceinsFluorescent DyesGlutamic AcidIndicators and ReagentsZinc

Identifiers

PMID22339672
PMCPMC3323735
OpenAlexW1652811187

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.