Evidence map›Paper›PMID 26522832›Full record

ArticleToxicology and applied pharmacology2015

Omeprazole increases the efficacy of a soluble epoxide hydrolase inhibitor in a PGE₂ induced pain model.

Sumanta Kumar Goswami, Bora Inceoglu, Jun Yang, Debin Wan, Sean D Kodani, Carlos Antonio Trindade da Silva, Christophe Morisseau, Bruce D Hammock

Abstract read
In one paragraph

Article in Toxicology and applied pharmacology, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed
1.7field-weighted citation impact, top 18% 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

16 citing papers in PubMed, 21 citations in OpenAlex.

  1. Article
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  5. Review
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  8. Article
  9. The effect of a coix seed oil injection on cancer pain relief.Supportive care in cancer : official journal of the Multinational Association of Supportive Care in Cancer · 2019
    Article
  10. Oxidized Lipids in Persistent Pain States.Frontiers in pharmacology · 2019
    Review
  11. Review
  12. Article
  13. Review
  14. Article
  15. Article
  16. 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

8 authors at 1 institution in 2 countries.

Sumanta Kumar GoswamiDepartment of Entomology and Nematology, UC Davis Comprehensive Cancer Center, University of California, Davis, CA, USA.
Bora InceogluDepartment of Entomology and Nematology, UC Davis Comprehensive Cancer Center, University of California, Davis, CA, USA.
Jun YangDepartment of Entomology and Nematology, UC Davis Comprehensive Cancer Center, University of California, Davis, CA, USA.
Debin WanDepartment of Entomology and Nematology, UC Davis Comprehensive Cancer Center, University of California, Davis, CA, USA.
Sean D KodaniDepartment of Entomology and Nematology, UC Davis Comprehensive Cancer Center, University of California, Davis, CA, USA.
Carlos Antonio Trindade da SilvaDepartment of Entomology and Nematology, UC Davis Comprehensive Cancer Center, University of California, Davis, CA, USA; Department of Genetics and Biochemistry, Federal University of Uberlandia, MG, Brazil.
Christophe MorisseauDepartment of Entomology and Nematology, UC Davis Comprehensive Cancer Center, University of California, Davis, CA, USA.
Bruce D HammockDepartment of Entomology and Nematology, UC Davis Comprehensive Cancer Center, University of California, Davis, CA, USA. Electronic address: bdhammock@ucdavis.edu.
University of California, Davis · US

Funding

Workshop on Environmental Technology Transfer and EntrepreneurshipP42ES004699 · NIEHS · UNIVERSITY OF CALIFORNIA DAVIS · PI HAMMOCK, BRUCE D · 1987 to 2021
$50.1M
HYDROLYTIC ENZYMES IN THE METABOLISM OF TOXINSR01ES002710 · NIEHS · UNIVERSITY OF CALIFORNIA DAVIS · PI HAMMOCK, BRUCE D · 1985 to 2018
$4.0M
Predoctoral Training in Pharmacological SciencesT32GM099608 · NIGMS · UNIVERSITY OF CALIFORNIA AT DAVIS · PI HELL, JOHANNES W · 2012 to 2021
$2.2M
Role of Epoxygenated Fatty Acids in Modulating PainR21AR062866 · NIAMS · UNIVERSITY OF CALIFORNIA AT DAVIS · PI HAMMOCK, BRUCE D, INCEOGLU, AHMET B. · 2013 to 2014
$360k
NIAMS NIH HHS R21 AR062866NIAMS NIH HHS R21AR062866NIEHS NIH HHS P42 ES004699NIEHS NIH HHS P42ES004699NIEHS NIH HHS R01 ES002710NIGMS NIH HHS T32 GM099608
6 · The paper itself

Abstract

Epoxyeicosatrienoic acids (EETs) are potent endogenous analgesic metabolites produced from arachidonic acid by cytochrome P450s (P450s). Metabolism of EETs by soluble epoxide hydrolase (sEH) reduces their activity, while their stabilization by sEH inhibition decreases both inflammatory and neuropathic pain. Here, we tested the complementary hypothesis that increasing the level of EETs through induction of P450s by omeprazole (OME), can influence pain related signaling by itself, and potentiate the anti-hyperalgesic effect of sEH inhibitor. Rats were treated with OME (100mg/kg/day, p.o., 7 days), sEH inhibitor TPPU (3mg/kg/day, p.o.) and OME (100mg/kg/day, p.o., 7 days)+TPPU (3mg/kg/day, p.o., last 3 days of OME dose) dissolved in vehicle PEG400, and their effect on hyperalgesia (increased sensitivity to pain) induced by PGE2 was monitored. While OME treatment by itself exhibited variable effects on PGE2 induced hyperalgesia, it strongly potentiated the effect of TPPU in the same assay. The significant decrease in pain with OME+TPPU treatment correlated with the increased levels of EETs in plasma and increased activities of P450 1A1 and P450 1A2 in liver microsomes. The results show that reducing catabolism of EETs with a sEH inhibitor yielded a stronger analgesic effect than increasing generation of EETs by OME, and combination of both yielded the strongest pain reducing effect under the condition of this study.

Indexed as

AnalgesicsAnimalsCytochrome P-450 Enzyme SystemDinoprostoneEnzyme InhibitorsEpoxide HydrolasesEpoxy CompoundsHyperalgesiaMaleMicrosomes, LiverOmeprazolePainPhenylurea CompoundsPiperidinesRatsRats, Sprague-Dawley1-trifluoromethoxyphenyl-3-(1-propionylpiperidine-4-yl)ureaAnalgesicsCytochrome P-450 Enzyme SystemDinoprostoneEnzyme InhibitorsEpoxide HydrolasesEpoxy CompoundsOmeprazolePhenylurea CompoundsPiperidinesCytochrome P450 1AEpoxyeicosatrienoic acidOmeprazoleProstaglandin E(2) induced hyperalgesiasEH inhibitor TPPUTime dependent P450 induction

Identifiers

PMID26522832
PMCPMC4666679
OpenAlexW2130923919

What OpenQuestion holds

Textmetadata
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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.