Evidence map›Paper›PMID 23593390›Full record

ArticlePloS one2013

Dietary iron concentration may influence aging process by altering oxidative stress in tissues of adult rats.

Lorena Fernandes Arruda, Sandra Fernandes Arruda, Natália Aboudib Campos, Fernando Fortes de Valencia, Egle Machado de Almeida Siqueira

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 23 papers.

0numbers the graph read from it
0cells of the map it votes in
23citing papers in PubMed
2.1field-weighted citation impact, top 13% 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

23 citing papers in PubMed, 45 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Article
  5. Review
  6. Article
  7. Article
  8. Article
  9. Iron homeostasis and organismal aging.Ageing research reviews · 2021
    Review
  10. Article
  11. Article
  12. Article
  13. Article
  14. Article
  15. Effects of long-term exposures to low iron and branched-chain amino acid containing diets on aging skeletal muscle of Fisher 344 × Brown Norway rats.Applied physiology, nutrition, and metabolism = Physiologie appliquee, nutrition et metabolisme · 2018
    Article
  16. Article
  17. Article
  18. Article
  19. Article
  20. Iron Homeostasis in Health and Disease.International journal of molecular sciences · 2016
    Review
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

5 authors at 1 institution in 1 country.

Lorena Fernandes ArrudaHealth Sciences Faculty, Campus Universitário Darcy Ribeiro, Universidade de Brasília, Brasília, DF, Brazil. fernandeslfarruda@gmail.com
Sandra Fernandes Arruda
Natália Aboudib Campos
Fernando Fortes de Valencia
Egle Machado de Almeida Siqueira
Universidade de Brasília · BR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Iron is an essential element. However, in its free form, iron participates in redox-reactions, leading to the production of free radicals that increase oxidative stress and the risk of damaging processes. Living organisms have an efficient mechanism that regulates iron absorption according to their iron content to protect against oxidative damage. The effects of restricted and enriched-iron diets on oxidative stress and aging biomarkers were investigated. Adult Wistar rats were fed diets containing 10, 35 or 350 mg/kg iron (adult restricted-iron, adult control-iron and adult enriched-iron groups, respectively) for 78 days. Rats aged two months were included as a young control group. Young control group showed higher hemoglobin and hematocrit values, lower levels of iron and lower levels of MDA or carbonyl in the major studied tissues than the adult control group. Restricted-iron diet reduced iron concentrations in skeletal muscle and oxidative damage in the majority of tissues and also increased weight loss. Enriched-iron diet increased hematocrit values, serum iron, gamma-glutamyl transferase, iron concentrations and oxidative stress in the majority of tissues. As expected, young rats showed higher mRNA levels of heart and hepatic L-Ferritin (Ftl) and kidneys SMP30 as well as lower mRNA levels of hepatic Hamp and interleukin-1 beta (Il1b) and also lower levels of liver protein ferritin. Restricted-iron adult rats showed an increase in heart Ftl mRNA and the enriched-iron adult rats showed an increase in liver nuclear factor erythroid derived 2 like 2 (Nfe2l2) and Il1b mRNAs and in gut divalent metal transporter-1 mRNA (Slc11a2) relative to the control adult group. These results suggest that iron supplementation in adult rats may accelerate aging process by increasing oxidative stress while iron restriction may retards it. However, iron restriction may also impair other physiological processes that are not associated with aging.

Indexed as

Organ SpecificityOxidative StressAgingAnimalsAntimicrobial Cationic PeptidesBlotting, WesternBody WeightCalcium-Binding ProteinsCarboxylic Ester HydrolasesFeeding BehaviorFerritinsHepcidinsInterleukin-1betaIntracellular Signaling Peptides and ProteinsIron, DietaryMaleAntimicrobial Cationic PeptidesCalcium-Binding ProteinsCarboxylic Ester HydrolasesFerritinsHamp protein, ratHepcidinsInterleukin-1betaIntracellular Signaling Peptides and ProteinsIron, DietaryMalondialdehydeNfe2l2 protein, ratNF-E2-Related Factor 2Rgn protein, ratRNA, Messenger

Identifiers

PMID23593390
PMCPMC3625229
OpenAlexW2015799242

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.