Evidence map›Paper›PMID 21972221›Full record

ArticleAnatomical record (Hoboken, N.J. : 2007)2011

Decreased cytochrome c oxidase subunit VIIa in aged rat heart mitochondria: immunocytochemistry.

Hisashi Fujioka, Shadi Moghaddas, Deborah G Murdock, Edward J Lesnefsky, Bernard Tandler, Charles L Hoppel

Open access · bronzeAbstract read
In one paragraph

Article in Anatomical record (Hoboken, N.J. : 2007), 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.

0numbers the graph read from it
0cells of the map it votes in
10citing papers in PubMed
0.4field-weighted citation impact, top 37% 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

10 citing papers in PubMed, 15 citations in OpenAlex.

  1. Article
  2. Metabolic Complications in Cardiac Aging.Frontiers in physiology · 2021
    Review
  3. Article
  4. Article
  5. Article
  6. Mitochondrial Metabolism in Aging Heart.Circulation research · 2016
    Review
  7. Article
  8. Review
  9. Article
  10. Can proteomics yield insight into aging aorta?Proteomics. Clinical applications · 2013
    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

6 authors at 2 institutions in 1 country.

Hisashi FujiokaDepartment of Pharmacology, School of Medicine, Case Western Reserve University, Cleveland, Ohio 44106, USA. hisashi.fujioka@case.edu
Shadi Moghaddas
Deborah G Murdock
Edward J Lesnefsky
Bernard Tandler
Charles L Hoppel
Louis Stokes Cleveland VA Medical Center · USCase Western Reserve University · US

Funding

SULFHYDRYL STATUS IN THE AGING HEART: ROLE OF GLUTAREDOXINP01AG015885 · NIA · CASE WESTERN RESERVE UNIVERSITY · PI HOPPEL, CHARLES LESLIE · 1998 to 2008
$8.1M
NIA NIH HHS P01 AG015885
6 · The paper itself

Abstract

Aging decreases oxidative phosphorylation through cytochrome oxidase (COX) in cardiac interfibrillar mitochondria (IFM) in 24-month old (aged) rats compared to 6-month old adult Fischer 344 rats, whereas subsarcolemmal mitochondria (SSM) located beneath the plasma membrane remain unaffected. Immunoelectron microscopy (IEM) reveals in aged rats a 25% reduction in cardiac COX subunit VIIa in cardiac IFM, but not in SSM. In contrast, the content of subunit IV remains unchanged in both SSM and IFM, irrespective of age. These subunits are localized mainly on cristae membranes. In contrast, semi-quantitative immunoblotting, which detects denatured protein, indicates that the content of COX VIIa is similar in IFM and SSM from both aged and adult hearts. IEM provides a sensitive method for precise localizing and quantifying specific mitochondrial proteins. The lack of immunoreaction of COX VIIa subunit by IEM in aged IFM is not explained by a reduction in protein, but rather by a masking phenomenon or by an in situ change in protein structure affecting COX activity.

Indexed as

Microscopy, ImmunoelectronAge FactorsAgingAnimalsBlotting, WesternDown-RegulationElectron Transport Complex IVMaleMitochondria, HeartOxidative PhosphorylationRatsRats, Inbred F344Electron Transport Complex IV

Identifiers

PMID21972221
PMCPMC3744322
OpenAlexW2086707872

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.