Evidence map›Paper›PMID 18400259›Full record

ArticleMechanisms of ageing and development2008

Aging-induced alterations in gene transcripts and functional activity of mitochondrial oxidative phosphorylation complexes in the heart.

Claudia C Preston, Andrew S Oberlin, Ekhson L Holmuhamedov, Anu Gupta, Sandeep Sagar, Rashad H Khazi Syed, Sabeeh A Siddiqui, Sreekumar Raghavakaimal, Andre Terzic, Arshad Jahangir

Open access · greenAbstract read
In one paragraph

Article in Mechanisms of ageing and development, 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 69 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
69citing papers in PubMed, 1 pooled it
2.5field-weighted citation impact, top 11% 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

69 citing papers in PubMed, 1 synthesis or guideline pooled it, 139 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Immunometabolism in the Aging Heart.Journal of the American Heart Association · 2025
    Review
  4. Article
  5. Article
  6. Review
  7. Article
  8. A New Scoring System for the Evaluation of Ibrutinib-Associated Arrhythmias in Chronic Lymphocytic Leukemia: The ACEF ScoreTurkish journal of haematology : official journal of Turkish Society of Haematology · 2024
    Article
  9. Article
  10. Article
  11. Article
  12. Metabolic Changes in Cardiac Aging.Reviews in cardiovascular medicine · 2023
    Review
  13. Article
  14. The Aging Heart: A Molecular and Clinical Challenge.International journal of molecular sciences · 2022
    Review
  15. Article
  16. Role of eIF5A in Mitochondrial Function.International journal of molecular sciences · 2022
    Review
  17. Article
  18. Article
  19. Article
  20. Article

9 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

10 authors at 2 institutions in 1 country.

Claudia C PrestonMarriot Heart Disease Research Program, Department of Medicine, Mayo Clinic, Rochester, MN 55905, United States.
Andrew S Oberlin
Ekhson L Holmuhamedov
Anu Gupta
Sandeep Sagar
Rashad H Khazi Syed
Sabeeh A Siddiqui
Sreekumar Raghavakaimal
Andre Terzic
Arshad Jahangir
Mayo Clinic in Arizona · USMayo Clinic in Florida · US

Funding

Human Senescence and CardioprotectionR01HL089542 · NHLBI · MAYO CLINIC ROCHESTER · PI JAHANGIR, ARSHAD · 2008 to 2011
$1.6M
Mitochondria and surgical myopreservation in agingR01AG021201 · NIA · MAYO CLINIC ROCHESTER · PI JAHANGIR, ARSHAD · 2002 to 2006
$1.4M
NHLBI NIH HHS HL089542NHLBI NIH HHS R01 HL089542NIA NIH HHS AG-21201NIA NIH HHS R01 AG021201
6 · The paper itself

Abstract

Aging is associated with progressive decline in energetic reserves compromising cardiac performance and tolerance to injury. Although deviations in mitochondrial functions have been documented in senescent heart, the molecular bases for the decline in energy metabolism are only partially understood. Here, high-throughput transcription profiles of genes coding for mitochondrial proteins in ventricles from adult (6-months) and aged (24-months) rats were compared using microarrays. Out of 614 genes encoding for mitochondrial proteins, 94 were differentially expressed with 95% downregulated in the aged. The majority of changes affected genes coding for proteins involved in oxidative phosphorylation (39), substrate metabolism (14) and tricarboxylic acid cycle (6). Compared to adult, gene expression changes in aged hearts translated into a reduced mitochondrial functional capacity, with decreased NADH-dehydrogenase and F(0)F(1) ATPase complex activities and capacity for oxygen-utilization and ATP synthesis. Expression of genes coding for transcription co-activator factors involved in the regulation of mitochondrial metabolism and biogenesis were downregulated in aged ventricles without reduction in mitochondrial density. Thus, aging induces a selective decline in activities of oxidative phosphorylation complexes I and V within a broader transcriptional downregulation of mitochondrial genes, providing a substrate for reduced energetic efficiency associated with senescence.

Indexed as

AgingGene Expression ProfilingTranscription, GeneticAdenosine TriphosphateAnimalsCellular SenescenceMitochondriaModels, BiologicalMyocardiumOligonucleotide Array Sequence AnalysisOxidative PhosphorylationProton-Translocating ATPasesRatsRats, Inbred F344Reverse Transcriptase Polymerase Chain ReactionAdenosine TriphosphateProton-Translocating ATPases

Identifiers

PMID18400259
PMCPMC2464774
OpenAlexW1975503771

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.