Evidence map›Paper›PMID 19304939›Full record

ArticleThe journals of gerontology. Series A, Biological sciences and medical sciences2009

Exercise training modulates the nitric oxide synthase profile in skeletal muscle from old rats.

Wook Song, Hyo-Bum Kwak, Jong-Hee Kim, John M Lawler

Open access · bronzeAbstract readComparative Study
In one paragraph

Article in The journals of gerontology. Series A, Biological sciences and medical sciences, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 29 papers.

0numbers the graph read from it
0cells of the map it votes in
29citing papers in PubMed
16.8field-weighted citation impact, top 1% 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

29 citing papers in PubMed, 67 citations in OpenAlex.

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  6. Increased cGMP improves microvascular exercise training adaptations in diet-induced obesity.American journal of physiology. Endocrinology and metabolism · 2025
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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

4 authors at 1 institution in 2 countries.

Wook SongRedox Biology and Cell Signaling Laboratory, Department of Health and Kinesiology, and Intercollegiate Faculty of Nutrition, Texas A&M University, College Station, TX 77843-4243, USA.
Hyo-Bum Kwak
Jong-Hee Kim
John M Lawler
Texas A&M University · US

Funding

Regulation of Oxidative Stress in the mdx DiaphragmR03AR054084 · NIAMS · TEXAS A&M UNIVERSITY · PI LAWLER, JOHN M · 2006 to 2008
$204k
NIAMS NIH HHS AR054084NIAMS NIH HHS R03 AR054084
6 · The paper itself

Abstract

The effects of exercise training on the nitric oxide synthase (NOS) isoform profile in aging fast-twitch (white gastrocnemius [WG]) and slow-twitch (soleus [SOL]) muscle have not been investigated. Six-month and 27-month male Fischer-344 rats were divided into the following groups: young sedentary (YS), young treadmill exercise trained for 12 weeks, old sedentary (OS), and old exercise trained (OE). Inducible NOS (iNOS) protein expression and activity were significantly higher in OS compared with YS, whereas exercise training significantly reduced iNOS protein and activity levels in the WG. Neuronal NOS protein expression decreased with aging in WG but was upregulated significantly with exercise training in OE for both WG and SOL. Endothelial NOS (eNOS) protein levels were depressed in WG of old rats but were higher in OE than in OS. eNOS was unaffected by aging or exercise in the SOL. Our results indicate that endurance exercise training attenuates age-induced alterations of NOS isoforms with a greater response in fast-twitch compared with slow-twitch muscle.

Indexed as

Gene Expression Regulation, EnzymologicPhysical Conditioning, AnimalAnimalsGene ExpressionIsoenzymesMaleMuscle, SkeletalNitric Oxide SynthaseRatsIsoenzymesNitric Oxide Synthase

Identifiers

PMID19304939
PMCPMC2800810
OpenAlexW2033484785

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.