Evidence map›Paper›PMID 24169121›Full record

ArticleJournal of acquired immune deficiency syndromes (1999)2013

Higher serum iron is associated with increased oxidant stress in HIV-infected men.

Matthew B Crist, Vlada V Melekhin, Aihua Bian, Ayumi Shintani, Ginger L Milne, Asha R Kallianpur, Leigh A Dageforde, David W Haas, Todd Hulgan

Abstract read
In one paragraph

Article in Journal of acquired immune deficiency syndromes (1999), 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
6citing papers in PubMed, 1 pooled it
1.5field-weighted citation impact, top 19% 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

6 citing papers in PubMed, 1 synthesis or guideline pooled it, 13 citations in OpenAlex.

  1. Anemia, Iron Status, and HIV: A Systematic Review of the Evidence.Advances in nutrition (Bethesda, Md.) · 2020
    Pooled it
  2. Trial
  3. Review
  4. Article
  5. The isoprostanes--25 years later.Biochimica et biophysica acta · 2015
    Review
  6. 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

9 authors at 4 institutions in 1 country.

Matthew B Crist*Department of Medicine, Division of Infectious Diseases; †Department of Biostatistics; ‡Department of Medicine, Division of Clinical Pharmacology, Vanderbilt University School of Medicine, Nashville, TN; §Departments of Genomic Medicine and Medicine, Cleveland Clinic Foundation/Lerner Research Institute, Cleveland, OH; and ‖Department of Surgery, Vanderbilt University School of Medicine, Nashville, TN (Dr Crist is now with the Acute Disease Epidemiology Section, Georgia Department of Public Health, Atlanta, GA; Dr Melekhin is now with Middle Tennessee Medical Center, Murfreesboro, TN).
Vlada V Melekhin
Aihua Bian
Ayumi Shintani
Ginger L Milne
Asha R Kallianpur
Leigh A Dageforde
David W Haas
Todd Hulgan
Office of Infectious Diseases · USCleveland Clinic · USGeorgia Department of Public Health · USVanderbilt University · US

Funding

VIROLOGY COREP30AI054999 · NIAID · VANDERBILT UNIVERSITY · PI D'AQUILA, RICHARD · 2003 to 2011
$10.3M
Iron and Mitochondrial Genomics in Neuro-inflammation and HAND: A CHARTER StudyR01MH095621 · NIMH · VANDERBILT UNIVERSITY MEDICAL CENTER · PI HULGAN, TODD M, KALLIANPUR, ASHA R · 2011 to 2015
$3.1M
Oxidant Stress and Antioxidants during HIV TherapyK23AT002508 · NCCIH · VANDERBILT UNIVERSITY · PI HULGAN, TODD M · 2004 to 2007
$473k
NCCIH NIH HHS K23 AT002508NIAID NIH HHS P30 AI054999NIAID NIH HHS P30 AI54999NIMH NIH HHS 1R01 MH095621NIMH NIH HHS R01 MH095621
6 · The paper itself

Abstract

backgroundF₂-isoprostanes (F₂-IsoP) are oxidant stress biomarkers that are higher in HIV-infected women than men. We explored whether the effect of hemoglobin (Hgb), serum iron, or anemia on F₂-IsoP is different between HIV-infected women and men.

methodsPlasma F₂-IsoP were quantified by gas chromatography/mass spectrometry; clinical and laboratory data were collected at enrollment or from the medical record. Multivariable linear regression was used to assess associations between F₂-IsoP and Hgb, anemia as a dichotomous variable, and serum iron with adjustment for age, sex, race, body mass index, CD4 lymphocyte count, self-reported current smoking status, and antiretroviral therapy.

resultsCompared with men, women had lower Hgb [median: 12.7 (interquartile range: 11.8-13.9) vs. 14.9 (13.7-15.8) g/dL, P < 0.001], lower iron levels [75 (47-97) vs. 90 (69-121) µg/dL, P = 0.004], more anemia (29% vs. 10%, P < 0.001), and higher levels of F₂-IsoP [42 (32-62) vs. 36 (25-46) pg/mL, P < 0.001]. The relationship between iron and F₂-IsoP differed significantly between men and women (interaction P = 0.02). Men had a 21% (95% confidence interval: 8 to 36) increase in F₂-IsoP per interquartile increase in iron (P = 0.001), whereas no relationship was seen among women [-4% (-17 to 13, P = 0.65].

conclusionsAlthough women have overall higher F₂-IsoP than men, a relationship between circulating F₂-IsoP and iron levels was observed in men but not in women with HIV infection. The association between female sex and higher F₂-IsoP is not explained by iron or Hgb levels because the association persists when controlling for these factors. The role of iron in oxidant stress and sex-specific differences among HIV-infected individuals require further study.

Indexed as

AdultAnemiaAnti-HIV AgentsCross-Sectional StudiesFemaleHemoglobinsHIV InfectionsHumansIronMaleMiddle AgedOxidative StressRisk FactorsAnti-HIV AgentsHemoglobinsIron

Identifiers

PMID24169121
PMCPMC3816092
OpenAlexW2031852136

What OpenQuestion holds

Textmetadata
LicenceTDM
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.