Evidence map›Paper›PMID 19896962›Full record

ArticleMechanisms of ageing and development

Aging and dietary restriction alter proteasome biogenesis and composition in the brain and liver.

Kalavathi Dasuri, Le Zhang, Philip Ebenezer, Ying Liu, Sun Ok Fernandez-Kim, Jeffrey N Keller

Open access · greenAbstract readComparative Study
In one paragraph

Article in Mechanisms of ageing and development. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 38 papers.

0numbers the graph read from it
0cells of the map it votes in
38citing papers in PubMed
2.3field-weighted citation impact, top 12% 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

38 citing papers in PubMed, 66 citations in OpenAlex.

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  15. Quantitative proteomics to study aging in rabbit liver.Mechanisms of ageing and development · 2020
    Article
  16. Organelle aging: Lessons from model organisms.Journal of genetics and genomics = Yi chuan xue bao · 2019
    Review
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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 1 institution in 1 country.

Kalavathi DasuriPennington Biomedical Research Center/Louisiana State University System, 6400 Perkins Road, Baton Rouge, LA 70808-4124, USA.
Le Zhang
Philip Ebenezer
Ying Liu
Sun Ok Fernandez-Kim
Jeffrey N Keller
Louisiana State University System · US

Funding

Research BaseP30DK072476 · NIDDK · LSU PENNINGTON BIOMEDICAL RESEARCH CTR · PI Peter Todd Katzmarzyk · 2005 to 2026
$26.5M
Dietary restriction and proteasome-mediated protein degradation in the aging CNSR01AG029885 · NIA · UNIVERSITY OF KENTUCKY · PI KELLER, JEFFREY NEIL · 2007 to 2011
$1.4M
Dietary restriction, aging, and the proteasomeR01AG025771 · NIA · UNIVERSITY OF KENTUCKY · PI KELLER, JEFFREY NEIL · 2007 to 2011
$1.3M
NIA NIH HHS AG025771NIA NIH HHS AG029885NIA NIH HHS R01 AG025771NIA NIH HHS R01 AG029885NIDDK NIH HHS P30 DK072476
6 · The paper itself

Abstract

Interventions such as dietary restriction (DR) have been reported to ameliorate age-related proteasome inhibition in some tissues. Currently it is not known what effects aging and DR have on proteasome biogenesis in the liver and brain, nor have previous studies identified the links between changes in proteasome composition, biogenesis, and activity in the aging brain and liver. In the present study we demonstrate that the brain and liver exhibit age-dependent decreases in 26S and 20S proteasome activity. Additionally, our studies demonstrate that the brain and liver undergo selective changes in proteasome biology, including increases in proteasome biogenesis in response to aging and DR, with the liver exhibit more robust plasticity as compared to the brain. Lastly, studies demonstrated that aging and DR alter the interaction of Hsp90 with the 20S proteasome complex in the brain and liver. These studies affirm the dynamic nature of the proteasome complexes in both the liver and brain following aging and DR. Additionally, these data indicate that the relationship between proteasome composition/biogenesis and proteasome activity in tissues is extremely complex and tissue specific. These data have implications for understanding the effects of tissue specific effects of aging and DR on protein turnover and proteotoxicity.

Indexed as

DietAgingAnimalsBrainBrain ChemistryHSP90 Heat-Shock ProteinsLiverMaleProteasome Endopeptidase ComplexRatsRats, Inbred BNRats, Inbred F344HSP90 Heat-Shock ProteinsPA28 protein, ratProteasome Endopeptidase Complex

Identifiers

PMID19896962
PMCPMC2942759
OpenAlexW2083883947

What OpenQuestion holds

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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.