Evidence map›Paper›PMID 22648738›Full record

ArticleJournal of cachexia, sarcopenia and muscle2013

Effect of colon cancer and surgical resection on skeletal muscle mitochondrial enzyme activity in colon cancer patients: a pilot study.

Bethan E Phillips, Kenneth Smith, Sarah Liptrot, Philip J Atherton, Krishna Varadhan, Michael J Rennie, Mike Larvin, Jonathan N Lund, John P Williams

Registry-linked trialOpen access · goldAbstract read
In one paragraph

Article in Journal of cachexia, sarcopenia and muscle, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT07451015 ("A Randomized Controlled Trial on the Effect of Preoperative Carbohydrate Loading in Diabetic and Non-Diabetic Patients Undergoing Elective Abdominal Surgery"), which is not on this map. Cited by 19 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
19citing papers in PubMed, 1 pooled it
1.5field-weighted citation impact, top 18% 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.

NCT07451015 nacompletednot on this mapstarted 2024, after this paper: background citation

"A Randomized Controlled Trial on the Effect of Preoperative Carbohydrate Loading in Diabetic and Non-Diabetic Patients Undergoing Elective Abdominal Surgery"

TypeinterventionalSponsorTanta UniversityRan2024 to 2025Enrolled120ConditionsType 2 Diabetes Mellitus, Elective Abdominal Surgery, Gastric Emptying, Postoperative RecoveryArmsStandard Preoperative Fasting With Water, Preoperative Oral Carbohydrate Loading
3 · Its place in the literature

Who cites it

19 citing papers in PubMed, 1 synthesis or guideline pooled it, 46 citations in OpenAlex.

  1. Short-Term (<8 wk) High-Intensity Interval Training in Diseased Cohorts.Medicine and science in sports and exercise · 2018
    Pooled it
  2. Trial
  3. Article
  4. Reference values for the PROMISBMC public health · 2025
    Article
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  19. Muscle wasting: an overview of recent developments in basic research.Journal of cachexia, sarcopenia and muscle · 2014
    Article
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

9 authors at 2 institutions in 1 country.

Bethan E PhillipsSchool of Graduate Entry Medicine and Health, University of Nottingham, Royal Derby Hospital, Derby, DE22 3DT, UK, beth.phillips@nottingham.ac.uk.
Kenneth Smith
Sarah Liptrot
Philip J Atherton
Krishna Varadhan
Michael J Rennie
Mike Larvin
Jonathan N Lund
John P Williams
Royal Derby Hospital · GBUniversity of Nottingham · GB

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundColon cancer (CC) patients commonly suffer declines in muscle mass and aerobic function. We hypothesised that CC would be associated with reduced muscle mass and mitochondrial enzyme activity and that curative resection would exacerbate these changes.

methodsWe followed age-matched healthy controls and CC patients without distant metastasis on radiological imaging before and 6 weeks after hemi-colectomy surgery. Body composition was analysed using dual energy X-ray absorptiometry. Mitochondrial enzyme activity and protein concentrations were analysed in vastus lateralis muscle biopsies.

resultsIn pre-surgery, there were no differences in lean mass between CC patients and age-matched controls (46.1 + 32.5 vs. 46.1 + 37.3 kg). Post-resection lean mass was reduced in CC patients (43.8 + 30.3 kg, P < 0.01). When comparing markers of mitochondrial function, the following were observed: pyruvate dehydrogenase (PDH) activity was lower in CC patients pre-surgery (P < 0.001) but normalized post-resection and cytochrome c oxidase and pyruvate dehydrogenase E2 subunit protein expression were lower in CC patients pre-surgery and not restored to control values post-resection (P < 0.001). Nuclear factor kappa-B, an inflammatory marker, was higher in CC patients pre-surgery compared to controls (P < 0.01), returning to control levels post-resection.

conclusionMuscle mass was affected by surgery rather than cancer per se. PDH activity was however lower in cancer patients, suggesting that muscle mass and mitochondrial enzyme activity are not inextricably linked. This reduction in mitochondrial enzyme activity may well contribute to the significant risks of major surgery to which CC patients are exposed.

Identifiers

PMID22648738
PMCPMC3581615
OpenAlexW2030562392

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC
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.