Evidence map›Paper›PMID 25388934›Full record

ArticleAnnals of neurology2015

Supervised exercise improves cutaneous reinnervation capacity in metabolic syndrome patients.

J Robinson Singleton, Robin L Marcus, Margaret K Lessard, Justin E Jackson, A Gordon Smith

Registry-linked trialOpen access · bronzeAbstract read
In one paragraph

Article in Annals of neurology, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT06030297 (Diode Laser as a Biomarker for Neuropathic Pain of Peripheral Origin.), which is not on this map. Cited by 53 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
53citing papers in PubMed, 3 pooled it
6.0field-weighted citation impact, top 4% 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.

NCT06030297 nacompletednot on this mapstarted 2023, after this paper: background citation

Diode Laser as a Biomarker for Neuropathic Pain of Peripheral Origin.

TypeinterventionalSponsorUniversity of UtahRan2023 to 2026Enrolled75ConditionsPeripheral NeuropathyArmsDiode Laser fiber type Selective Stimulator, ZTlido 1.8 % Topical System, PeriCam PSI NR, Medoc Quantitative Sensory Testing, Inactive Topical System
3 · Its place in the literature

Who cites it

53 citing papers in PubMed, 3 syntheses or guidelines pooled it, 114 citations in OpenAlex.

  1. Physical activity and dietary interventions in diabetic neuropathy: a systematic review.Clinical autonomic research : official journal of the Clinical Autonomic Research Society · 2019
    Pooled it
  2. Sudomotor function testing by electrochemical skin conductance: does it really measure sudomotor function?Clinical autonomic research : official journal of the Clinical Autonomic Research Society · 2019
    Pooled it
  3. Pooled it
  4. Trial
  5. Trial
  6. Trial
  7. Article
  8. Article
  9. An Overview on Diabetic Neuropathy.Current diabetes reviews · 2025
    Review
  10. Review
  11. Article
  12. Article
  13. Review
  14. Review
  15. The foot in diabetes - a reminder of an ever-present risk.Clinical medicine (London, England) · 2023
    Review
  16. Review
  17. The conundrum of diabetic neuropathies-Past, present, and future.Journal of diabetes and its complications · 2022
    Review
  18. Review
  19. Article
  20. Review
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

5 authors at 1 institution in 1 country.

J Robinson SingletonDepartments of Neurology, University of Utah, Salt Lake City, UT.
Robin L Marcus
Margaret K Lessard
Justin E Jackson
A Gordon Smith
University of Utah · US

Funding

The Utah Diabetic Neuropathy StudyR01DK064814 · NIDDK · UNIVERSITY OF UTAH · PI SINGLETON, JOHN ROBINSON, SMITH, A. GORDON · 2004 to 2019
$7.8M
NIDDK NIH HHS R01 DK064814NIDDK NIH HHS R01DK064814PHS HHS 1ULTR001067
6 · The paper itself

Abstract

objectiveUnmyelinated cutaneous axons are vulnerable to physical and metabolic injury, but also capable of rapid regeneration. This balance may help determine risk for peripheral neuropathy associated with diabetes or metabolic syndrome. Capsaicin application for 48 hours induces cutaneous fibers to die back into the dermis. Regrowth can be monitored by serial skin biopsies to determine intraepidermal nerve fiber density (IENFD). We used this capsaicin axotomy technique to examine the effects of exercise on cutaneous regenerative capacity in the setting of metabolic syndrome.

methodsBaseline ankle IENFD and 30-day cutaneous regeneration after thigh capsaicin axotomy were compared for participants with type 2 diabetes (n = 35) or metabolic syndrome (n = 32) without symptoms or examination evidence of neuropathy. Thirty-six participants (17 with metabolic syndrome) then joined twice weekly observed exercise and lifestyle counseling. Axotomy regeneration was repeated in month 4 during this intervention.

resultsBaseline distal leg IENFD was significantly reduced for both metabolic syndrome and diabetic groups. With exercise, participants significantly improved exercise capacity and lower extremity power. Following exercise, 30-day reinnervation rate improved (0.051 ± 0.027 fibers/mm/day before vs 0.072 ± 0.030 after exercise, p = 0.002). Those who achieved improvement in more metabolic syndrome features experienced a greater degree of 30-day reinnervation (p < 0.012).

interpretationMetabolic syndrome was associated with reduced baseline IENFD and cutaneous regeneration capacity comparable to that seen in diabetes. Exercise-induced improvement in metabolic syndrome features increased cutaneous regenerative capacity. The results underscore the potential benefit to peripheral nerve function of a behavioral modification approach to metabolic improvement.

Indexed as

Metabolic DiseasesAdministration, CutaneousBiopsyCapsaicinExercise TherapyFemaleHumansMaleNerve RegenerationSkinSkin DiseasesTime FactorsCapsaicin

Identifiers

PMID25388934
PMCPMC4293306
OpenAlexW1514102983

What OpenQuestion holds

Textmetadata
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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.