Evidence map›Paper›PMID 24587576›Full record

ArticleSleep2014

Increased use-dependent plasticity in chronic insomnia.

Rachel E Salas, Joseph M Galea, Alyssa A Gamaldo, Charlene E Gamaldo, Richard P Allen, Michael T Smith, Gabriela Cantarero, Barbara D Lam, Pablo A Celnik

Abstract read
In one paragraph

Article in Sleep, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
10citing papers in PubMed, 1 pooled it
–field-weighted citation impact
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

10 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
  2. Article
  3. Article
  4. Review
  5. Review
  6. Article
  7. Article
  8. Adopted youth and sleep difficulties.Pediatric health, medicine and therapeutics · 2016
    Review
  9. Sleep, cognition, and normal aging: integrating a half century of multidisciplinary research.Perspectives on psychological science : a journal of the Association for Psychological Science · 2015
    Review
  10. 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.

Rachel E SalasDepartment of Neurology, Johns Hopkins Medical Institution, Baltimore, MD.
Joseph M GaleaDepartment of Physical Medicine and Rehabilitation, Johns Hopkins Medical Institution, Baltimore, MD.
Alyssa A GamaldoSchool of Aging Studies, College of Behavioral & Community Sciences, University of South Florida, Tampa, FL.
Charlene E GamaldoDepartment of Neurology, Johns Hopkins Medical Institution, Baltimore, MD.
Richard P AllenDepartment of Neurology, Johns Hopkins Medical Institution, Baltimore, MD.
Michael T SmithDepartment of Psychiatry and Behavioral Sciences, Johns Hopkins Medical Institution, Baltimore, MD.
Gabriela CantareroDepartment of Physical Medicine and Rehabilitation, Johns Hopkins Medical Institution, Baltimore, MD.
Barbara D LamDepartment of Neurology, Johns Hopkins Medical Institution, Baltimore, MD.
Pablo A CelnikDepartment of Neurology, Johns Hopkins Medical Institution, Baltimore, MD ; Department of Physical Medicine and Rehabilitation, Johns Hopkins Medical Institution, Baltimore, MD.

Funding

Novel Strategies to Enhance Motor Function After StrokeR01HD053793 · NICHD · JOHNS HOPKINS UNIVERSITY · PI CELNIK, PABLO ARIEL · 2007 to 2019
$5.2M
Sleep Disturbance, Central Pain Modulation, and Clinical Pain in OsteoarthritisR01AR054871 · NIAMS · JOHNS HOPKINS UNIVERSITY · PI SMITH, MICHAEL T · 2007 to 2011
$3.1M
Neuroscience Training ProgramT32EY017203 · NEI · JOHNS HOPKINS UNIVERSITY · PI BERGLES, DWIGHT E · 2005 to 2014
$2.9M
Effects of Insomnia on Pain & Function in Osteoarthritis:The Role of InflammationR01AR059410 · NIAMS · JOHNS HOPKINS UNIVERSITY · PI SMITH, MICHAEL T · 2010 to 2013
$1.3M
NEI NIH HHS T32 EY017203NIAMS NIH HHS R01AR054871NIAMS NIH HHS R01AR059410NICHD NIH HHS R01 HD053793
6 · The paper itself

Abstract

STUDY

objectivesDuring normal sleep several neuroplasticity changes occur, some of which are considered to be fundamental to strengthen memories. Given the evidence linking sleep to neuroplasticity, it is conceivable that individuals with chronic sleep disruption, such as patients with chronic insomnia (CI), would experience abnormalities in neuroplastic processes during daytime. Protocols testing use-dependent plasticity (UDP), one of the mechanisms underlying formation of motor memories traces, provide a sensitive measure to assess neuroplasticity in the context of motor training. DESIGN AND

participantsA well-established transcranial magnetic stimulation (TMS) paradigm was used to evaluate the ability of patients with CI and age-matched good sleeper controls to undergo UDP. We also investigated the effect of insomnia on intracortical motor excitability measures reflecting GABAergic and glutamatergic mechanisms.

settingHuman Brain Physiology Laboratory, Johns Hopkins Medical Institutions. MEASUREMENTS AND

resultsWe found that patients with CI experienced increased UDP changes relative to controls. This effect was not due to differences in motor training. In addition, patients with CI showed enhanced intracortical facilitation relative to controls, in the absence of changes in intracortical inhibitory measures.

conclusionThis study provides the first evidence that patients with chronic insomnia have an increased plasticity response to physical exercise, possibly due to larger activation of glutamatergic mechanisms. This suggests a heightened state of neuroplasticity, which may reflect a form of maladaptive plasticity, similar to what has been described in dystonia patients and chronic phantom pain after amputation. These results could lead to development of novel treatments for chronic insomnia.

Indexed as

AgedCase-Control StudiesEvoked Potentials, MotorFemaleGABAergic NeuronsGlutamineHumansMaleMemoryMiddle AgedMotor SkillsNeuronal PlasticitySleepSleep Initiation and Maintenance DisordersTranscranial Magnetic StimulationGlutamineInsomniamemorymotor trainingplasticitytranscranial magnetic stimulation

Identifiers

PMID24587576
PMCPMC3920319

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.