Evidence map›Paper›PMID 22760572›Full record

ArticleThe American journal of clinical nutrition2012

Major metabolite of F2-isoprostane in urine may be a more sensitive biomarker of oxidative stress than isoprostane itself.

Tsogzolmaa Dorjgochoo, Yu-Tang Gao, Wong-Ho Chow, Xiao-ou Shu, Gong Yang, Qiuyin Cai, Nathaniel Rothman, Hui Cai, Honglan Li, Xinqing Deng and 5 more

Open access · bronzeAbstract read
In one paragraph

Article in The American journal of clinical nutrition, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 55 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
55citing papers in PubMed, 1 pooled it
2.7field-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

55 citing papers in PubMed, 1 synthesis or guideline pooled it, 84 citations in OpenAlex.

  1. Pooled it
  2. Circadian Modulation of the Antioxidant Effect of Grape Consumption: A Randomized Controlled Trial.International journal of environmental research and public health · 2023
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  17. Angiotensin II acts through Rac1 to upregulate pendrin: role of NADPH oxidase.American journal of physiology. Renal physiology · 2024
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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

15 authors at 4 institutions in 2 countries.

Tsogzolmaa DorjgochooDivisions of Epidemiology, Vanderbilt University School of Medicine, Nashville, TN, USA.
Yu-Tang Gao
Wong-Ho Chow
Xiao-ou Shu
Gong Yang
Qiuyin Cai
Nathaniel Rothman
Hui Cai
Honglan Li
Xinqing Deng
Adrian Franke
L Jackson Roberts
Ginger Milne
Wei Zheng
Qi Dai
Vanderbilt University · USNational Institutes of Health · USShanghai Cancer Institute · CNUniversity of Hawaiʻi at Mānoa · US

Funding

CANCER RISK REDUCTION AND DIET--A COHORT STUDY OF WOMENR01CA070867 · NCI · VANDERBILT UNIVERSITY · PI ZHENG, WEI · 1996 to 2007
$4.6M
Oxidative Stress, Antioxidants and Breast Cancer RiskR01CA106591 · NCI · VANDERBILT UNIVERSITY · PI DAI, QI · 2004 to 2007
$973k
Intramural NIH HHSNCI NIH HHS N02 CP1101066NCI NIH HHS R01 CA106591NCI NIH HHS R01CA106591NCI NIH HHS R01CA70867
6 · The paper itself

Abstract

backgroundThere is limited literature on the contributors to isoprostane metabolite 2,3-dinor-5,6-dihydro-15-F(2t)-isoprostane (15-F(2t)-IsoP-M) compared with F(2)-isoprostanes (F(2)-IsoPs) as an oxidative stress biomarker.

objectiveThe objective of this study was to investigate whether plasma concentrations of antioxidants, urinary excretion rates of polyphenols, and antioxidants in food and dietary supplements are attributable to both urinary F(2)-IsoP and 15-F(2t)-IsoP-M concentrations.

designDietary intake information and blood and urine samples were obtained from 845 healthy middle-aged and elderly female participants of the Shanghai Women's Health Study. Urinary isoprostanes (F(2)-IsoPs and 15-F(2t)-IsoP-M) were measured and adjusted for creatinine concentrations.

resultsUrinary 15-F(2t)-IsoP-M and F(2)-IsoP concentrations were lower in subjects who used a multivitamin. Lower F(2)-IsoP concentrations were observed in ginseng users, whereas lower concentrations of 15-F(2t)-IsoP-M were shown in subjects who used a vitamin E supplement. Plasma concentrations of several antioxidants (ie, β-carotenes, both trans and cis β-carotenes, lycopene other than trans, 5-cis and 7-cis isomers, cis anhydrolutein, and cis β-cryptoxanthin) were inversely associated with 15-F(2t)-IsoP-M but not with F(2)-IsoPs, whereas β-, γ-, and δ-tocopherols were positively associated with 15-F(2t)-IsoP-M but not with F(2)-IsoPs. Urinary polyphenol quercetin was positively associated with both F(2)-IsoPs and 15-F(2t)-IsoP-M.

conclusionThe results suggest that the F(2)-IsoP major metabolite 15-F(2t)-IsoP-M may be a more sensitive marker of endogenous oxidative stress status than are F(2)-IsoPs in the assessment of effects of antioxidants on age-related diseases.

Indexed as

Dietary SupplementsAdultAgedAntioxidantsBiomarkersCross-Sectional StudiesF2-IsoprostanesFemaleFlavonoidsFruitHumansIsoprostanesLinear ModelsMiddle AgedOxidative StressPolyphenolsAntioxidantsBiomarkersF2-IsoprostanesFlavonoidsIsoprostanesPolyphenolsTeaTocopherolsVitamin AVitamins

Identifiers

PMID22760572
PMCPMC3396448
OpenAlexW2098360148

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.