Evidence map›Paper›PMID 21697520›Full record

ArticleAmerican journal of physiology. Regulatory, integrative and comparative physiology2011

β-Hydroxy-β-methylbutyrate reduces myonuclear apoptosis during recovery from hind limb suspension-induced muscle fiber atrophy in aged rats.

Yanlei Hao, Janna R Jackson, Yan Wang, Neile Edens, Suzette L Pereira, Stephen E Alway

2 registry-linked trialsAbstract read
In one paragraph

Article in American journal of physiology. Regulatory, integrative and comparative physiology, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to 2 registered trials, which are not on this map. Cited by 62 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
62citing papers in PubMed, 2 pooled it
3.7field-weighted citation impact, top 6% 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.

NCT02773771 phase2 / phase3withdrawnnot on this mapstarted 2017, after this paper: background citation

Strategies to Reduce Organic Muscle Atrophy in the Intensive Care Unit (STROMA-ICU)

TypeinterventionalSponsorMassachusetts General HospitalRan2017 to 2019Enrolled0ConditionsMuscle AtrophyArmsbeta-hydroxy-beta-methylbutyrate, Placebo, Vital HP®
NCT02908425 nacompletednot on this mapstarted 2016, after this paper: background citation

Human Metabolism of HMB

TypeinterventionalSponsorTexas A&M UniversityRan2016 to 2017Enrolled13ConditionsElevated HMB ExcretionArmsStatin user
3 · Its place in the literature

Who cites it

62 citing papers in PubMed, 2 syntheses or guidelines pooled it, 118 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Trial
  4. Countering disuse atrophy in older adults with low-volume leucine supplementation.Journal of applied physiology (Bethesda, Md. : 1985) · 2020
    Trial
  5. Resveratrol Enhances Exercise-Induced Cellular and Functional Adaptations of Skeletal Muscle in Older Men and Women.The journals of gerontology. Series A, Biological sciences and medical sciences · 2017
    Trial
  6. Trial
  7. Trial
  8. Article
  9. Article
  10. Review
  11. Review
  12. International society of sports nutrition position stand: β-hydroxy-β-methylbutyrate (HMB).Journal of the International Society of Sports Nutrition · 2025
    Review
  13. Article
  14. International journal of molecular sciences · 2025
    Article
  15. Musculo-Immuno-Nutritional Score as a Prognostic Marker in Patients with Interstitial Pneumonia Awaiting Lung Transplantation.Annals of thoracic and cardiovascular surgery : official journal of the Association of Thoracic and Cardiovascular Surgeons of Asia · 2025
    Article
  16. Review
  17. Review
  18. Review
  19. Review
  20. Article

2 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

6 authors at 2 institutions in 1 country.

Yanlei HaoLaboratory of Muscle Biology and Sarcopenia, Division of Exercise Physiology,West Virginia University School of Medicine, Morgantown, WV 26506, USA.
Janna R Jackson
Yan Wang
Neile Edens
Suzette L Pereira
Stephen E Alway
Abbott Nutrition (United States)West Virginia University · US

Funding

THE ROLE OF HEF1 PROTEIN IN INVASION OF METASTATIC BREAST CANCERP20RR016440 · NCRR · WEST VIRGINIA UNIVERSITY · PI CUFF, CHRISTOPHER F · 2001 to 2010
$22.8M
NCRR NIH HHS 5P20RR016440-09NCRR NIH HHS P20 RR016440
6 · The paper itself

Abstract

β-Hydroxy-β-methylbutyrate (HMB) is a leucine metabolite shown to reduce protein catabolism in disease states and promote skeletal muscle hypertrophy in response to loading exercise. In this study, we evaluated the efficacy of HMB to reduce muscle wasting and promote muscle recovery following disuse in aged animals. Fisher 344×Brown Norway rats, 34 mo of age, were randomly assigned to receive either Ca-HMB (340 mg/kg body wt) or the water vehicle by gavage (n = 32/group). The animals received either 14 days of hindlimb suspension (HS, n = 8/diet group) or 14 days of unloading followed by 14 days of reloading (R; n = 8/diet group). Nonsuspended control animals were compared with suspended animals after 14 days of HS (n = 8) or after R (n = 8). HMB treatment prevented the decline in maximal in vivo isometric force output after 2 wk of recovery from hindlimb unloading. The HMB-treated animals had significantly greater plantaris and soleus fiber cross-sectional area compared with the vehicle-treated animals. HMB decreased the amount of TUNEL-positive nuclei in reloaded plantaris muscles (5.1% vs. 1.6%, P < 0.05) and soleus muscles (3.9% vs. 1.8%, P < 0.05). Although HMB did not significantly alter Bcl-2 protein abundance compared with vehicle treatment, HMB decreased Bax protein abundance following R, by 40% and 14% (P < 0.05) in plantaris and soleus muscles, respectively. Cleaved caspase-3 was reduced by 12% and 9% (P < 0.05) in HMB-treated reloaded plantaris and soleus muscles, compared with vehicle-treated animals. HMB reduced cleaved caspase-9 by 14% and 30% (P < 0.05) in reloaded plantaris and soleus muscles, respectively, compared with vehicle-treated animals. Although, HMB was unable to prevent unloading-induced atrophy, it attenuated the decrease in fiber area in fast and slow muscles after HS and R. HMB's ability to protect against muscle loss may be due in part to putative inhibition of myonuclear apoptosis via regulation of mitochondrial-associated caspase signaling.

Indexed as

AgingHindlimb SuspensionAnalysis of VarianceAnimalsApoptosisbcl-2-Associated X ProteinBody WeightChi-Square DistributionCrosses, GeneticDisease Models, AnimalIn Situ Nick-End LabelingIsometric ContractionMaleMuscle Fibers, SkeletalMuscle, SkeletalMuscle StrengthBax protein, ratbcl-2-Associated X Proteinbeta-hydroxyisovaleric acidProto-Oncogene Proteins c-bcl-2Valerates

Identifiers

PMID21697520
PMCPMC3174754
OpenAlexW2128163488

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

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.