Evidence map›Paper›PMID 18461459›Full record

ArticleApoptosis : an international journal on programmed cell death2008

Involvement of oxidative stress and caspase 2-mediated intrinsic pathway signaling in age-related increase in muscle cell apoptosis in mice.

Melissa Braga, Amiya P Sinha Hikim, Sanjit Datta, Monica G Ferrini, Danielle Brown, Ekaterina L Kovacheva, Nestor F Gonzalez-Cadavid, Indrani Sinha-Hikim

Open access · greenAbstract read
In one paragraph

Article in Apoptosis : an international journal on programmed cell death, 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 68 papers.

0numbers the graph read from it
0cells of the map it votes in
68citing papers in PubMed
6.6field-weighted citation impact, top 3% 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

68 citing papers in PubMed, 125 citations in OpenAlex.

  1. Nitric-Oxide-Inducing Factors on Vitamin D Changes in Older People Susceptible to Suffer from Sarcopenia.International journal of environmental research and public health · 2022
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  3. Deuterated Polyunsaturated Fatty Acids AlleviatebioRxiv : the preprint server for biology · 2025
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8 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

8 authors at 4 institutions in 1 country.

Melissa BragaDivision of Endocrinology, Metabolism, and Molecular Medicine, Charles R. Drew University, Los Angeles, CA 90059, USA.
Amiya P Sinha Hikim
Sanjit Datta
Monica G Ferrini
Danielle Brown
Ekaterina L Kovacheva
Nestor F Gonzalez-Cadavid
Indrani Sinha-Hikim
Charles R. Drew University of Medicine and Science · USHarbor–UCLA Medical Center · USLos Angeles Biomedical Research Institute · USThe Lundquist Institute · US

Funding

YQ MICRODELETIONS AND MALE INFERTILITYP20RR011145 · NCRR · CHARLES R. DREW UNIVERSITY OF MED &SCI · PI NORRIS, KEITH C · 1995 to 2009
$17.0M
Testosterone Action on Muscle Injury and RepairS06GM068510 · NIGMS · CHARLES R. DREW UNIVERSITY OF MED &SCI · PI SINHA HIKIM, AMIYA P · 2003 to 2010
$5.2M
NCRR NIH HHS P20 RR011145NCRR NIH HHS RR-011145NIGMS NIH HHS 5 SO6-GM068510NIGMS NIH HHS S06 GM068510
6 · The paper itself

Abstract

Apoptosis has been implicated as a mechanism of loss of muscle cells in normal aging and plays an important role in age-related sarcopenia. To test the hypothesis that caspase 2 and c-Jun NH(2)-terminal kinase (JNK)-mediated intrinsic pathway signaling contribute to skeletal muscle cell apoptosis in aging, we compared activation of caspase 2 and JNK and the in vivo expression of 4-hydroxynonenal protein adducts (4-HNE), inducible nitric oxide synthase (iNOS), glucose-6-phosphate dehydrogenase (G6PDH), B-cell lymphoma-2 (BCL-2), BAX, and phospho-BCL-2 in gastrocnemius muscles of young (5 months old) and old (25 months old) mice. A distinct age-related increase in 4-HNE and iNOS expression was readily detected in mice. Increased oxidative stress and iNOS induction were further accompanied by a decrease in G6PDH expression, activation of caspase 2 and JNK, and inactivation of BCL-2 through phosphorylation at serine 70, and caspase 9 activation. Regression analysis further revealed that increased muscle cell death in aging was significantly correlated with changes in the levels of these molecules. Taken together, our data indicate that caspase 2 and JNK-mediated intrinsic pathway signaling is one of the mechanisms involved in age-related increase in muscle cell apoptosis.

Indexed as

AgingAldehydesAnimalsApoptosisCaspase 2Caspase 9Glucosephosphate DehydrogenaseJNK Mitogen-Activated Protein KinasesMaleMiceMice, Inbred C57BLMuscle, SkeletalNitric Oxide Synthase Type IIOxidative StressPhosphorylationProto-Oncogene Proteins c-bcl-24-hydroxy-2-nonenalAldehydesCaspase 2Caspase 9Glucosephosphate DehydrogenaseJNK Mitogen-Activated Protein KinasesNitric Oxide Synthase Type IINos2 protein, mouseProto-Oncogene Proteins c-bcl-2

Identifiers

PMID18461459
PMCPMC4732709
OpenAlexW2037334479

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.