Evidence map›Paper›PMID 16606673›Full record

ArticleThe Journal of experimental medicine2006

Antioxidants protect from atherosclerosis by a heme oxygenase-1 pathway that is independent of free radical scavenging.

Ben J Wu, Krishna Kathir, Paul K Witting, Konstanze Beck, Katherine Choy, Cheng Li, Kevin D Croft, Trevor A Mori, David Tanous, Mark R Adams and 2 more

Open access · bronzeAbstract read
In one paragraph

Article in The Journal of experimental medicine, 2006. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 49 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
49citing papers in PubMed, 2 pooled it
7.9field-weighted citation impact, top 2% 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

49 citing papers in PubMed, 2 syntheses or guidelines pooled it, 144 citations in OpenAlex.

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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

12 authors at 5 institutions in 1 country.

Ben J WuCentre for Vascular Research, School of Medical Sciences, University of New South Wales, and Department of Haematology, Prince of Wales Hospital, Sydney NSW 2052, Australia.
Krishna Kathir
Paul K Witting
Konstanze Beck
Katherine Choy
Cheng Li
Kevin D Croft
Trevor A Mori
David Tanous
Mark R Adams
Antony K Lau
Roland Stocker
Prince of Wales Hospital · AUUNSW Sydney · AURoyal Perth Hospital · AUUniversity of Sydney · AUUniversity of Western Australia · AU

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Oxidative stress is implicated in atherogenesis, yet most clinical trials with antioxidants, particularly vitamin E, have failed to protect against atherosclerotic diseases. A striking exception is probucol, which retards atherosclerosis in carotid arteries and restenosis of coronary arteries after angioplasty. Because probucol has in vitro cellular-protective effects independent of inhibiting lipid oxidation, we investigated the mode of action of probucol in vivo. We used three models of vascular disease: apolipoprotein E-deficient mice, a model of atherosclerosis; rabbit aortic balloon injury, a model of restenosis; and carotid injury in obese Zucker rats, a model of type 2 diabetes. Unexpectedly, we observed that the phenol moieties of probucol were insufficient, whereas its sulphur atoms were required for protection. Probucol and its sulphur-containing metabolite, but not a sulphur-free phenolic analogue, protected via cell-specific effects on inhibiting macrophage accumulation, stimulating reendothelialization, and inhibiting vascular smooth muscle cell proliferation. These processes were mediated via induction of heme oxygenase-1 (HO-1), an activity not shared by vitamin E. Our findings identify HO-1 as the molecular target of probucol. They indicate 2-electron rather than radical (1-electron) oxidants as important contributors to atherogenesis, and point to novel lead compounds for therapeutic intervention against atherosclerotic diseases.

Indexed as

AnimalsApolipoproteins EAtherosclerosisCoronary RestenosisDiabetes Mellitus, Type 2Free Radical ScavengersHeme Oxygenase-1MaleMiceMice, KnockoutProbucolRabbitsRatsRats, ZuckerSignal TransductionApolipoproteins EFree Radical ScavengersHeme Oxygenase-1Probucol

Identifiers

PMID16606673
PMCPMC2118288
OpenAlexW2169714544

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-SA
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.