Evidence map›Paper›PMID 33661473›Full record

ArticleBiological trace element research2022

Dietary Cholesterol Supplements Disturb Copper Homeostasis in Multiple Organs in Rabbits: Aorta Copper Concentrations Negatively Correlate with the Severity of Atherosclerotic Lesions.

Hualin Li, Lijun Zhao, Tao Wang, Y James Kang

Abstract read
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In one paragraph

Article in Biological trace element research, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.

0numbers the graph read from it
0cells of the map it votes in
11citing papers in PubMed
1.2field-weighted citation impact, top 24% 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

11 citing papers in PubMed, 16 citations in OpenAlex.

  1. Review
  2. Association of Copper with Atherosclerosis and Treatment Strategies.Journal of cardiovascular translational research · 2025
    Review
  3. Review
  4. Review
  5. Review
  6. Review
  7. Reversal of atherosclerosis by restoration of vascular copper homeostasis.Experimental biology and medicine (Maywood, N.J.) · 2024
    Review
  8. Article
  9. Role of copper and its complexes in cardiovascular diseases.Zhong nan da xue xue bao. Yi xue ban = Journal of Central South University. Medical sciences · 2023
    Article
  10. Review
  11. 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

4 authors at 1 institution in 1 country.

Hualin LiRegenerative Medicine Research Center, West China Hospital, Sichuan University, Chengdu, 610041, Sichuan, China.
Lijun ZhaoRegenerative Medicine Research Center, West China Hospital, Sichuan University, Chengdu, 610041, Sichuan, China.
Tao WangRegenerative Medicine Research Center, West China Hospital, Sichuan University, Chengdu, 610041, Sichuan, China.
Y James KangRegenerative Medicine Research Center, West China Hospital, Sichuan University, Chengdu, 610041, Sichuan, China. ykang7@uthsc.edu.
Sichuan University · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Dietary cholesterol causes atherosclerosis along with a reduction of copper concentrations in the atherosclerosis wall. This study was to determine the relationship between aorta copper concentrations and the severity of atherosclerotic lesions as well as copper homeostasis in multiple organs in cholesterol-fed rabbits. Male New Zealand white rabbits, 10-week-old and averaged 2.0 kg, were fed a diet containing 1% (w/w) cholesterol or the same diet without cholesterol as controls. Twelve weeks after the feeding, aortic atherosclerotic lesions, serum cholesterol, and multiple organ copper concentrations were measured. Compared to controls, rabbits fed cholesterol-supplemented diet displayed higher serum cholesterol levels and developed atherosclerosis. Copper concentrations in the cholesterol-fed rabbits were increased in the serum and kidney but decreased in the atherosclerosis wall and multiple organs, including heart, liver, spleen, and lung. Furthermore, aorta copper concentrations negatively correlated, respectively, with the severity of the atherosclerotic lesion (r = - 0.64, p = 0.01), the microscope atherosclerotic lesion area (r = - 0.60, p = 0.02), and the stenosis of the lumen (r = - 0.54, p = 0.04). Dietary cholesterol not only causes atherosclerosis but also disturbs copper homeostasis in multiple organ systems. The negative correlation between aorta copper concentrations and the severity of atherosclerotic lesions suggests a vicious cycle between copper reduction and the pathogenesis of atherosclerosis. These changes in copper homeostasis would be additive to atherosclerosis as a risk factor for cardiovascular disease in humans.

Indexed as

AtherosclerosisCholesterol, DietaryAnimalsAortaCopperHomeostasisMaleRabbitsCholesterol, DietaryCopperAtherosclerosisCholesterolCopperHypercholesterolemiaRabbits

Identifiers

PMID33661473
OpenAlexW3134670881

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.