Evidence map›Paper›PMID 19880816›Full record

ArticleThe journals of gerontology. Series A, Biological sciences and medical sciences2010

Disruption of the mGsta4 gene increases life span of C57BL mice.

Sharda P Singh, Maciej Niemczyk, Deepti Saini, Vladimir Sadovov, Ludwika Zimniak, Piotr Zimniak

Open access · bronzeAbstract readComparative Study
In one paragraph

Article in The journals of gerontology. Series A, Biological sciences and medical sciences, 2010. 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
2.2field-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

38 citing papers in PubMed, 56 citations in OpenAlex.

  1. Tissue-specific changes in antioxidant defence during ageing: the effect of chronic cold exposure.Journal of comparative physiology. B, Biochemical, systemic, and environmental physiology · 2026
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  5. Loss ofInternational journal of molecular sciences · 2021
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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 2 institutions in 1 country.

Sharda P SinghDepartment of Pharmacology and Toxicology, University of Arkansas for Medical Sciences, 4301 West Markham Street, Little Rock, AR 72205, USA.
Maciej Niemczyk
Deepti Saini
Vladimir Sadovov
Ludwika Zimniak
Piotr Zimniak
University of Arkansas for Medical Sciences · USWashington University in St. Louis · US

Funding

Role of Lipid peroxidation and 4-hydroxynonenal in agingR01AG018845 · NIA · UNIV OF ARKANSAS FOR MED SCIS · PI ZIMNIAK, PIOTR · 2002 to 2006
$1.8M
GLUTATHIONE TRANSFERASES AND OXIDATIVE STRESS TOXICOLOGYR01ES007804 · NIEHS · UNIVERSITY OF ARKANSAS MED SCIS LTL ROCK · PI ZIMNIAK, PIOTR · 1996 to 2005
$1.6M
NIA NIH HHS R01 AG018845NIA NIH HHS R01 AG18845NIEHS NIH HHS R01 ES007804NIEHS NIH HHS R01 ES07804
6 · The paper itself

Abstract

The lipid peroxidation product 4-hydroxynonenal (4-HNE) forms as a consequence of oxidative stress. By electrophilic attack on biological macromolecules, 4-HNE mediates signaling or may cause toxicity. A major route of 4-HNE disposal is via glutathione conjugation, in the mouse catalyzed primarily by glutathione transferase mGSTA4-4. Unexpectedly, mGsta4-null mice, in which 4-HNE detoxification is impaired, have an extended life span. This finding could be explained by the observed activation of the transcription factor Nrf2 in the knockout mice, which in turn leads to an induction of antioxidant and antielectrophilic defenses. Especially, the latter could provide a detoxification mechanism that contributes to enhanced longevity. We propose that disruption of 4-HNE conjugation elicits a hormetic response in which an initially increased supply of 4-HNE is translated into activation of Nrf2, leading to a new steady state in which the rise of 4-HNE concentrations is dampened, but life-extending detoxification mechanisms are concomitantly induced.

Indexed as

Gene ExpressionAldehydesAnimalsCysteine Proteinase InhibitorsDNAGenotypeGlutathione TransferaseLongevityMiceMice, Inbred C57BLOxidative StressPolymerase Chain Reaction4-hydroxy-2-nonenalAldehydesCysteine Proteinase InhibitorsDNAGlutathione TransferasemGSTA4-4

Identifiers

PMID19880816
PMCPMC2796882
OpenAlexW2153175559

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.