Evidence map›Paper›PMID 18587266›Full record

ArticleExperimental & molecular medicine2008

Effect of sildenafil citrate on interleukin-1beta-induced nitric oxide synthesis and iNOS expression in SW982 cells.

Kyung-Ok Kim, Shin-Young Park, Chang-Woo Han, Hyun Kee Chung, Dae-Hyun Yoo, Dae-Hyun Ryu, Joong-Soo Han

Erratum issuedOpen access · goldAbstract read
In one paragraph

Article in Experimental & molecular medicine, 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 13 papers.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed
1.2field-weighted citation impact, top 22% 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

13 citing papers in PubMed, 23 citations in OpenAlex.

  1. Biochemistry and biophysics reports · 2024
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4 · The record

Corrections and comments

  • Erratum issued
    Ryu, Dae-Hyun [corrected to Yoo, Dae-Hyun]
5 · Who and what money

Authors and funding

7 authors at 2 institutions in 2 countries.

Kyung-Ok KimDepartment of Orthopaedics, Center for Musculoskeletal Research, University of Rochester Medical Center, New York 14642, USA.
Shin-Young Park
Chang-Woo Han
Hyun Kee Chung
Dae-Hyun Yoo
Dae-Hyun Ryu
Joong-Soo Han
Hanyang University · KRUniversity of Rochester Medical Center · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The purpose of this study was to identify the effect of sildenafil citrate on IL-1beta-induced nitric oxide (NO) synthesis and iNOS expression in human synovial sarcoma SW982 cells. IL-1? stimulated the cells to generate NO in both dose- and time-dependent manners. The IL-1beta-induced NO synthesis was inhibited by guanylate cyclase (GC) inhibitor, LY83583. When the cells were treated with 8-bromo-cGMP, a hydrolyzable analog of cGMP, NO synthesis was increased upto 5-fold without IL-1beta treatment suggesting that cGMP is an essential component for increasing the NO synthesis. Synoviocytes and chondrocytes contain strong cGMP phosphodiesterase (PDE) activity, which has biochemical features of PDE5. When SW982 cells were pretreated with sildenafil citrate (Viagra), a PDE5 specific inhibitor, sildenafil citrate significantly inhibited IL-1beta-induced NO synthesis and iNOS expressions. From this result, we noticed that PDE5 activity is required for IL-1?-induced NO synthesis and iNOS expressions in human synovial sarcoma cells, and sildenafil citrate may be able to suppress an inflammatory reaction of synovium through inhibition of NO synthesis and iNOS expression by cytokines.

Indexed as

Anti-Inflammatory AgentsCell Line, TumorCyclic GMPCyclic Nucleotide Phosphodiesterases, Type 2HumansInterleukin-1betaMaleNitric OxideNitric Oxide Synthase Type IIPhosphodiesterase InhibitorsPiperazinesPurinesSignal TransductionSildenafil CitrateSulfonesSynovial MembraneAnti-Inflammatory AgentsCyclic GMPCyclic Nucleotide Phosphodiesterases, Type 2Interleukin-1betaNitric OxideNitric Oxide Synthase Type IINOS2 protein, humanPhosphodiesterase InhibitorsPiperazinesPurinesSildenafil CitrateSulfones

Identifiers

PMID18587266
PMCPMC2679295
OpenAlexW2025170488

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.