Evidence map›Paper›PMID 18679830›Full record

ArticleCardiovascular toxicology2008

Role of copper and homocysteine in pressure overload heart failure.

William M Hughes, Walter E Rodriguez, Dorothea Rosenberger, Jing Chen, Utpal Sen, Neetu Tyagi, Karni S Moshal, Thomas Vacek, Y James Kang, Suresh C Tyagi

Open access · greenAbstract read
In one paragraph

Article in Cardiovascular toxicology, 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed
1.1field-weighted citation impact, top 22% 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, 41 citations in OpenAlex.

  1. The Yin and Yang of copper in cardiovascular health and disease.Molecular and cellular biochemistry · 2026
    Review
  2. Article
  3. Review
  4. Observational
  5. Review
  6. Reversal of atherosclerosis by restoration of vascular copper homeostasis.Experimental biology and medicine (Maywood, N.J.) · 2024
    Review
  7. Review
  8. Review
  9. Review
  10. Review
  11. Article
  12. Review
  13. Review
  14. Authors' Response.The Indian journal of medical research · 2017
    Article
  15. Article
  16. Homocysteine induces cardiac hypertrophy by up-regulating ATP7a expression.International journal of clinical and experimental pathology · 2015
    Article
  17. Article
  18. 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

10 authors at 2 institutions in 1 country.

William M HughesDepartment of Physiology and Biophysics, School of Medicine, University of Louisville, Louisville, KY 40202, USA.
Walter E Rodriguez
Dorothea Rosenberger
Jing Chen
Utpal Sen
Neetu Tyagi
Karni S Moshal
Thomas Vacek
Y James Kang
Suresh C Tyagi
University of Louisville Hospital · USUniversity of Louisville · US

Funding

Reversing diabetic muscle myopathy by exercise and exosomesR01HL074185 · NHLBI · UNIVERSITY OF LOUISVILLE · PI TYAGI, SURESH C. · 2003 to 2018
$5.7M
Implications of Endothelial-Myocyte Uncoupling in Cardiac ArrhythmiaR01HL088012 · NHLBI · UNIVERSITY OF LOUISVILLE · PI TYAGI, SURESH C. · 2007 to 2010
$1.5M
NHLBI NIH HHS HL-74185NHLBI NIH HHS HL-88012NHLBI NIH HHS R01 HL074185NHLBI NIH HHS R01 HL088012
6 · The paper itself

Abstract

Elevated levels of homocysteine (Hcy) (known as hyperhomocysteinemia HHcy) are involved in dilated cardiomyopathy. Hcy chelates copper and impairs copper-dependent enzymes. Copper deficiency has been linked to cardiovascular disease. We tested the hypothesis that copper supplement regresses left ventricular hypertrophy (LVH), fibrosis and endothelial dysfunction in pressure overload DCM mice hearts. The mice were grouped as sham, sham + Cu, aortic constriction (AC), and AC + Cu. Aortic constriction was performed by transverse aortic constriction. The mice were treated with or without 20 mg/kg copper supplement in the diet for 12 weeks. The cardiac function was assessed by echocardiography and electrocardiography. The matrix remodeling was assessed by measuring matrix metalloproteinase (MMP), tissue inhibitor of metalloproteinases (TIMPs), and lysyl oxidase (LOX) by Western blot analyses. The results suggest that in AC mice, cardiac function was improved with copper supplement. TIMP-1 levels decreased in AC and were normalized in AC + Cu. Although MMP-9, TIMP-3, and LOX activity increased in AC and returned to baseline value in AC + Cu, copper supplement showed no significant effect on TIMP-4 activity after pressure overload. In conclusion, our data suggest that copper supplement helps improve cardiac function in a pressure overload dilated cardiomyopathic heart.

Indexed as

Dietary SupplementsAnimalsAortaBlood PressureBlotting, WesternCardiomyopathy, DilatedConstrictionCopperDisease Models, AnimalEchocardiographyElectrocardiographyEndothelium, VascularFemaleFibrosisHeart FailureHemodynamicsCopperHomocysteineMatrix MetalloproteinasesProtein-Lysine 6-OxidaseTissue Inhibitor of Metalloproteinases

Identifiers

PMID18679830
PMCPMC2671677
OpenAlexW1985826592

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.