Evidence map›Paper›PMID 28892009›Full record

ArticleNutrients2017

Nrf2 Activation by 5-lipoxygenase Metabolites in Human Umbilical Vascular Endothelial Cells.

Nozomi Nagahora, Hidetoshi Yamada, Sayaka Kikuchi, Mayuka Hakozaki, Akira Yano

Open access · goldAbstract read
In one paragraph

Article in Nutrients, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed, 1 pooled it
0.7field-weighted citation impact, top 31% 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

18 citing papers in PubMed, 1 synthesis or guideline pooled it, 27 citations in OpenAlex.

  1. Pooled it
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  11. Monascuspiloin fromFoods (Basel, Switzerland) · 2022
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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

5 authors at 1 institution in 1 country.

Nozomi NagahoraIwate Biotechnology Research Center, 22-174-4 Narita, Kitakami, Iwate 024-0003, Japan. n-nagahora@ibrc.or.jp.
Hidetoshi YamadaIwate Biotechnology Research Center, 22-174-4 Narita, Kitakami, Iwate 024-0003, Japan. hyamada@ibrc.or.jp.
Sayaka KikuchiIwate Biotechnology Research Center, 22-174-4 Narita, Kitakami, Iwate 024-0003, Japan. s-fujisaki@ibrc.or.jp.
Mayuka HakozakiIwate Biotechnology Research Center, 22-174-4 Narita, Kitakami, Iwate 024-0003, Japan. m-hakozaki@ibrc.or.jp.
Akira YanoIwate Biotechnology Research Center, 22-174-4 Narita, Kitakami, Iwate 024-0003, Japan. akiray@ibrc.or.jp.
Iwate Biotechnology Research Center · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

5-hydroxyeicosatetraenoic acid (5-HETE) and 5-hydroxyeicosapentaenoic acid (5-HEPE) are major metabolites produced by 5-lipoxygenase (5-LOX) from arachidonic acid (AA) and eicosapentaenoic acid (EPA). Effects of hydroxides on endothelial cells are unclear, although 5-LOX is known to increase at arteriosclerotic lesions. To investigate the effects of hydroxides on human umbilical vein endothelial cells (HUVECs), the cells were treated with 50 μM each of AA, EPA, 5-HETE, and 5-HEPE. Treatment of HUVECs with 5-HETE and 5-HEPE, rather than with AA and EPA, increased the nuclear translocation of NF-E2 related factor 2 (Nrf2) and upregulated the expression of heme oxygenase-1 and cystine/glutamate transporter regulated by Nrf2. Reactive oxygen species (ROS) generation was markedly elevated in HUVECs after treatment with 5-HETE and 5-HEPE, and the pretreatment with α-tocopherol abrogated ROS levels similar to those in the vehicle control. However, ROS generation was independent of Nrf2 activation induced by 5-HETE and 5-HEPE. 5-HETE was converted to 5-oxo-eicosatetraenoic acid (5-oxo-ETE) in HUVECs, and 5-oxo-ETE increased Nrf2 activation. These results suggest that 5-HETE works as an Nrf2 activator through the metabolite 5-oxo-ETE in HUVECs. Similarly, 5-HEPE works in the same way, because 5-HEPE is metabolized to 5-oxo-eicosapentaenoic acid through the same pathway as that for 5-HETE.

Indexed as

alpha-TocopherolArachidonate 5-LipoxygenaseArachidonic AcidCells, CulturedEicosapentaenoic AcidHeme Oxygenase-1HumansHuman Umbilical Vein Endothelial CellsHydroxyeicosatetraenoic AcidsNF-E2-Related Factor 2Reactive Oxygen Species5-hydroxy-6,8,11,14,17-eicosapentaenoic acid5-hydroxy-6,8,11,14-eicosatetraenoic acidalpha-TocopherolArachidonate 5-LipoxygenaseArachidonic AcidEicosapentaenoic AcidHeme Oxygenase-1HMOX1 protein, humanHydroxyeicosatetraenoic AcidsNFE2L2 protein, humanNF-E2-Related Factor 2Reactive Oxygen Species5-hydroxyeicosapentaenoic acid5-hydroxyeicosatetraenoic acid5-lipoxygenase5-oxo-eicosatetraenoic acidhuman umbilical vein endothelial cellsNrf2reactive oxygen species

Identifiers

PMID28892009
PMCPMC5622761
OpenAlexW2751791208

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.