Evidence map›Paper›PMID 22215047›Full record

ArticleInflammation research : official journal of the European Histamine Research Society ... [et al.]2012

Leukotriene B(4) receptors BLT1 and BLT2 are involved in interleukin-8 production in human neutrophils induced by Trichomonas vaginalis-derived secretory products.

Young Hee Nam, Arim Min, Seong Hoon Kim, Young Ah Lee, Kyeong Ah Kim, Kyoung-Ju Song, Myeong Heon Shin

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In one paragraph

Article in Inflammation research : official journal of the European Histamine Research Society ... [et al.], 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed
2.9field-weighted citation impact, top 10% 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, 36 citations in OpenAlex.

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  7. Cyclooxygenase (COX)-2 Inhibitors ReduceFrontiers in microbiology · 2019
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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

7 authors at 1 institution in 1 country.

Young Hee NamDepartment of Environmental Medical Biology and Institute of Tropical Medicine, Yonsei University College of Medicine, 134 Sichon-dong, Seodaemun-gu, Seoul, 120-752, Korea.
Arim Min
Seong Hoon Kim
Young Ah Lee
Kyeong Ah Kim
Kyoung-Ju Song
Myeong Heon Shin
Yonsei University · KR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

OBJECTIVE AND

methodTrichomonas vaginalis is a flagellated protozoan parasite that causes human trichomoniasis. Although T. vaginalis itself can secrete lipid mediator leukotriene (LT) B(4) leading to neutrophil activation, information regarding the signaling mechanism involved in neutrophil activation induced by T. vaginalis-secreted LTB(4) is limited. We investigated whether LTB(4) contained in the T. vaginalis-derived secretory products (TvSP) is closely involved in interleukin (IL)-8 production in human neutrophils via LTB(4) receptors BLT1 or BLT2.

resultsT. vaginalis produced more than 714 pg/ml of LTB(4) per 1 × 10(7) trichomonads. The ability of trichomonads to secrete LTB(4) was inhibited by treatment of trichomonads with the 5-lipo-oxygenease inhibitor AA861, but not the cyclo-oxygenease I inhibitor FR122047. When neutrophils were incubated with TvSP obtained from 1 × 10(7) trichomonads, IL-8 protein secretion was significantly increased compared to results for cells incubated with medium alone. The stimulatory effect of TvSP on IL-8 production was strongly inhibited by pretreatment of TvSP with lipase, although pretreatment with heat or proteinase K showed little inhibitory effect. Moreover, TvSP-induced IL-8 production was efficiently inhibited when trichomonads were pretreated with AA861 or when neutrophils were pretreated with antagonists for BLT1 or BLT2.

conclusionOur results suggest that LTB(4) receptors BLT1 and BLT2 are involved in IL-8 production in neutrophils induced by T. vaginalis.

Indexed as

BenzoquinonesEndopeptidase KFatty AlcoholsGlycolsHot TemperatureHumansInterleukin-8Leukotriene AntagonistsLeukotriene B4LipaseLipoxygenase InhibitorsNeutrophil ActivationNeutrophilsPiperazinesReceptors, Leukotriene B4Tetrazoles1-((4,5-bis(4-methoxyphenyl)-2-thiazoyl)carbonyl)-4-methylpiperazine2,3,5-trimethyl-6-(12-hydroxy-5,10-dodecadiynyl)-1,4-benzoquinoneBenzoquinonesCXCL8 protein, humanEndopeptidase KFatty AlcoholsGlycolsInterleukin-8Leukotriene AntagonistsLeukotriene B4LipaseLipoxygenase InhibitorsLTB4R2 protein, humanLTB4R protein, humanLY 255283PiperazinesReceptors, Leukotriene B4TetrazolesThiazolesU 75302

Identifiers

PMID22215047
OpenAlexW2042720178

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.