Evidence map›Paper›PMID 16943225›Full record

ArticleThe British journal of ophthalmology2007

Selective blockade of phosphodiesterase types 2, 5 and 9 results in cyclic 3'5' guanosine monophosphate accumulation in retinal pigment epithelium cells.

R M H Diederen, E C La Heij, M Markerink-van Ittersum, A Kijlstra, F Hendrikse, J de Vente

Open access · greenAbstract read
In one paragraph

Article in The British journal of ophthalmology, 2007. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed
0.4field-weighted citation impact, top 37% 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

14 citing papers in PubMed, 27 citations in OpenAlex.

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  13. Immunohistochemical localization of phosphodiesterase 2A in multiple mammalian species.The journal of histochemistry and cytochemistry : official journal of the Histochemistry Society · 2009
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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 at 2 institutions in 1 country.

R M H DiederenDepartment of Psychiatry and Neuropsychology, European Graduate School of Neuroscience, University of Maastricht, Maastricht, The Netherlands. r.diederen@NP.unimaas.nl
E C La Heij
M Markerink-van Ittersum
A Kijlstra
F Hendrikse
J de Vente
Maastricht University · NLEuropean Graduate School of Neuroscience · NL

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

aimTo investigate which phosphodiesterase (PDE) is involved in regulating cyclic 3'5' guanosine monophosphate breakdown in retinal pigment epithelium (RPE) cells.

methodscGMP content in the cultured RPE cells (D407 cell line) was evaluated by immunocytochemistry in the presence of non-selective or isoform-selective PDE inhibitors in combination with the particulate guanylyl cyclase stimulator atrial natriuretic peptide (ANP) or the soluble guanylyl cyclase stimulator sodium nitroprusside (SNP). mRNA expression of PDE2, PDE5 and PDE9 was studied in cultured human RPE cells and rat RPE cell layers using non-radioactive in situ hybridisation.

resultsIn the absence of PDE inhibitors, cGMP levels in cultured RPE cells are very low. cGMP accumulation was readily detected in cultured human RPE cells after incubation with Bay60-7550 as a selective PDE2 inhibitor, sildenafil as a selective PDE5 inhibitor or Sch51866 as a selective PDE9 inhibitor. In the presence of PDE inhibition, cGMP content increased markedly after stimulation of the particulate guanylyl cyclase. mRNA of PDE2,PDE5 and PDE9 was detected in all cultured human RPE cells and also in rat RPE cell layers.

conclusionsPDE2, PDE5 and PDE9 have a role in cGMP metabolism in RPE cells.

Indexed as

3',5'-Cyclic-AMP Phosphodiesterases3',5'-Cyclic-GMP PhosphodiesterasesAnimalsCells, CulturedCyclic GMPCyclic Nucleotide Phosphodiesterases, Type 5ExonucleasesGene ExpressionHumansIn Situ HybridizationMalePhosphodiesterase InhibitorsPhosphoric Diester HydrolasesPigment Epithelium of EyeRatsRats, Inbred Lew3',5'-Cyclic-AMP Phosphodiesterases3',5'-Cyclic-GMP PhosphodiesterasesCyclic GMPCyclic Nucleotide Phosphodiesterases, Type 5ExonucleasesPDE5A protein, humanPde5a protein, ratPde9a protein, ratPhosphodiesterase InhibitorsPhosphoric Diester HydrolasesRNA, Messengerspleen exonuclease

Identifiers

PMID16943225
PMCPMC1857670
OpenAlexW2165244360

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.