Evidence map›Paper›PMID 18923921›Full record

ArticlePurinergic signalling2008

The P2X(7) receptor in retinal ganglion cells: A neuronal model of pressure-induced damage and protection by a shifting purinergic balance.

Claire H Mitchell, Wennan Lu, Huiling Hu, Xiulan Zhang, David Reigada, Mei Zhang

Abstract read
In one paragraph

Article in Purinergic signalling, 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.

0numbers the graph read from it
0cells of the map it votes in
6citing papers in PubMed
–field-weighted citation impact
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

6 citing papers in PubMed.

  1. 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

6 authors.

Claire H MitchellDepartment of Physiology, University of Pennsylvania School of Medicine, 3700 Hamilton Walk, Philadelphia, PA, 19104-6085, USA, chm@mail.med.upenn.edu.
Wennan Lu
Huiling Hu
Xiulan Zhang
David Reigada
Mei Zhang

Funding

Scientific TransparencyP30EY001583 · NEI · UNIVERSITY OF PENNSYLVANIA · PI CLAIRE H MITCHELL · 1985 to 2026
$19.5M
Purines and the Health of Retinal Ganglion CellsR01EY015537 · NEI · UNIVERSITY OF PENNSYLVANIA · PI MITCHELL, CLAIRE H · 2005 to 2023
$6.7M
REGULATION OF LYSOSOMAL PH IN RPE CELLSR01EY013434 · NEI · UNIVERSITY OF PENNSYLVANIA · PI MITCHELL, CLAIRE H · 2002 to 2020
$5.3M
NEI NIH HHS P30 EY001583NEI NIH HHS R01 EY013434NEI NIH HHS R01 EY015537
6 · The paper itself

Abstract

Retinal ganglion cells process the visual signal and transmit it along their axons in the optic nerve to the brain. Molecular, immunohistochemical, and functional analyses indicate that the majority of retinal ganglion cells express the ionotropic P2X(7) receptor. Stimulation of the receptor can lead to a rise in intracellular calcium and cell death, although death does not involve the opening of a large diameter pore. Adenosine acting at A(3) receptors can attenuate the rise in calcium and death accompanying P2X(7) receptor activation, suggesting that dephosphorylation of ATP into adenosine is neuroprotective and that the balance of extracellular purines can influence neuronal survival. Increased intraocular pressure can lead to release of excessive extracellular ATP in the retina and damage ganglion cells by acting on P2X(7) receptors, implicating a role for the receptor in the loss of ganglion cell activity in glaucoma. In summary, the activation of P2X(7) receptors has both physiologic and pathophysiologic implications for ganglion cell function. These characteristics may also provide an insight into the contributions the P2X(7) receptor makes to neurons elsewhere.

Identifiers

PMID18923921
PMCPMC2583208

What OpenQuestion holds

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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.