Evidence map›Paper›PMID 19625698›Full record

ArticleThe Journal of nutrition2009

Zinc deficiency affects DNA damage, oxidative stress, antioxidant defenses, and DNA repair in rats.

Yang Song, Scott W Leonard, Maret G Traber, Emily Ho

Abstract read
In one paragraph

Article in The Journal of nutrition, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 95 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
95citing papers in PubMed, 1 pooled it
10.0field-weighted citation impact, top 1% 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

95 citing papers in PubMed, 1 synthesis or guideline pooled it, 244 citations in OpenAlex.

  1. Pooled it
  2. Trial
  3. Zinc supplementation reduced DNA breaks in Ethiopian women.Nutrition research (New York, N.Y.) · 2015
    Trial
  4. Article
  5. Review
  6. Assessment of metal exposure in fingernails of patients with nasopharyngeal cancer: a case study in Vietnamese men.Biometals : an international journal on the role of metal ions in biology, biochemistry, and medicine · 2026
    Article
  7. Identification of novel molecular subtypes in ovarian cancerThe Korean journal of physiology & pharmacology : official journal of the Korean Physiological Society and the Korean Society of Pharmacology · 2026
    Article
  8. Article
  9. Zinc in eye health, retinal biology and disease.Progress in retinal and eye research · 2025
    Review
  10. Review
  11. Review
  12. Review
  13. Review
  14. Effects of short term dietary zinc deficiency and zinc supplementation on nitro-oxidative stress in testes of Wistar rats.Biometals : an international journal on the role of metal ions in biology, biochemistry, and medicine · 2025
    Article
  15. Article
  16. Article
  17. Review
  18. Article
  19. Article
  20. Review

35 more citing papers are in PubMed but not listed here.

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.

Yang SongDepartment of Nutrition and Exercise Science and 5Linus Pauling Institute, Oregon State University, Corvallis, OR 97331, USA.
Scott W Leonard
Maret G Traber
Emily Ho
Oregon State University · US

Funding

Reducing Susceptibility to Environmental Stress Throughout the Life SpanP30ES000210 · NIEHS · OREGON STATE UNIVERSITY · PI BECKMAN, JOSEPH S · 1985 to 2015
$21.4M
NIEHS NIH HHS P30 ES00210
6 · The paper itself

Abstract

Approximately 12% of Americans do not consume the Estimated Average Requirement for zinc and could be at risk for marginal zinc deficiency. Zinc is an essential component of numerous proteins involved in the defense against oxidative stress and DNA damage repair. Studies in vitro have shown that zinc depletion causes DNA damage. We hypothesized that zinc deficiency in vivo causes DNA damage through increases in oxidative stress and impairments in DNA repair. Sprague-Dawley rats were fed zinc-adequate (ZA; 30 mg Zn/kg) or severely zinc-deficient (ZD; <1 mg Zn/kg) diets or were pair-fed zinc-adequate diet to match the mean feed intake of ZD rats for 3 wk. After zinc depletion, rats were repleted with a ZA diet for 10 d. In addition, zinc-adequate (MZA 30 mg Zn/kg) or marginally zinc-deficient (MZD; 6 mg Zn/kg) diets were given to different groups of rats for 6 wk. Severe zinc depletion caused more DNA damage in peripheral blood cells than in the ZA group and this was normalized by zinc repletion. We also detected impairments in DNA repair, such as compromised p53 DNA binding and differential activation of the base excision repair proteins 8-oxoguanine glycosylase and poly ADP ribose polymerase. Importantly, MZD rats also had more DNA damage and higher plasma F(2)-isoprostane concentrations than MZA rats and had impairments in DNA repair functions. However, plasma antioxidant concentrations and erythrocyte superoxide dismutase activity were not affected by zinc depletion. These results suggest interactions among zinc deficiency, DNA integrity, oxidative stress, and DNA repair and suggested a role for zinc in maintaining DNA integrity.

Indexed as

DNA Breaks, Single-StrandedAnimalsAntioxidantsBody WeightDietDNA GlycosylasesDNA RepairErythrocytesF2-IsoprostanesMaleOrgan SizeOxidative StressPoly(ADP-ribose) PolymerasesRatsRats, Sprague-DawleySuperoxide DismutaseAntioxidantsDNA GlycosylasesF2-Isoprostanesoxoguanine glycosylase 1, humanPoly(ADP-ribose) PolymerasesSuperoxide DismutaseTumor Suppressor Protein p53Zinc

Identifiers

PMID19625698
PMCPMC3151020
OpenAlexW2133236418

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.