Evidence map›Paper›PMID 18762198›Full record

ArticleLife sciences2008

Tanshinone IIA reduces macrophage death induced by hydrogen peroxide by upregulating glutathione peroxidase.

Yu-I Li, Gary Elmer, Renée C Leboeuf

Open access · greenAbstract read
In one paragraph

Article in Life sciences, 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 24 papers.

0numbers the graph read from it
0cells of the map it votes in
24citing papers in PubMed
6.1field-weighted citation impact, top 5% 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

24 citing papers in PubMed, 57 citations in OpenAlex.

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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

3 authors at 1 institution in 1 country.

Yu-I LiDepartment of Medicine, University of Washington, Seattle, WA, USA.
Gary Elmer
Renée C Leboeuf
University of Washington · US

Funding

Gene Regulation of Atherosclerosis in Diabetic AnimalsR01HL052848 · NHLBI · UNIVERSITY OF WASHINGTON · PI LEBOEUF, RENEE C · 1997 to 2005
$1.9M
Vascular Disease and Inflammation in MiceR01HL079382 · NHLBI · UNIVERSITY OF WASHINGTON · PI LEBOEUF, RENEE C · 2006 to 2009
$1.6M
NHLBI NIH HHS HL52848NHLBI NIH HHS HL79382NHLBI NIH HHS R01 HL052848NHLBI NIH HHS R01 HL079382
6 · The paper itself

Abstract

aimsTanshinone IIA is an important ingredient in the herb danshen (Salvia miltiorrhiza), which has been used to treat cardiovascular diseases such as atherosclerosis and angina for hundreds of years in China. There are numerous reports that TIIA has anti-oxidant properties but the chemical structure indicates that TIIA is fully oxidized. Here, we test the hypothesis that TIIA alters the expression and/or activity of specific anti-oxidation enzymes to protect cells from oxidant damage. MAIN

methodsWe utilized J774 macrophages to model cellular responses to TIIA when challenged with H(2)O(2). Expression and activity levels of several anti-oxidation enzymes were investigated and the only system modulated by TIIA was glutathione peroxidase (GPx). KEY

findingsGPx-1 mRNA levels were significantly increased by TIIA but not the vitamin E analogue, Trolox. GPx activities were also significantly increased by TIIA. Mercaptosuccinic acid inhibited GPx activity and the protective effect of TIIA was attenuated. Thus, TIIA protects cultured macrophages from H(2)O(2)-induced cell death and protection is mediated in large part by TIIA induction of GPx gene expression and activity. SIGNIFICANCE: Because of the importance of GPx in health and because TIIA is able to modulate GPx activity to some extent in cell culture, we suggest that TIIA is a worthwhile candidate for further study in animal models of atherosclerosis and eventually in human prospective trials.

Indexed as

Protective AgentsAbietanesAnimalsCaspasesCatalaseCell DeathCells, CulturedChromansDNA FragmentationGlutathione PeroxidaseHydrogen PeroxideMacrophagesMembrane PotentialsMiceMitochondrial MembranesOxidants6-hydroxy-2,5,7,8-tetramethylchroman-2-carboxylic acidAbietanesCaspasesCatalaseChromansGlutathione PeroxidaseHydrogen PeroxideOxidantsPhenanthrenesProtective Agentstanshinone

Identifiers

PMID18762198
PMCPMC2613784
OpenAlexW1965856638

What OpenQuestion holds

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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.