Evidence map›Paper›PMID 21767584›Full record

Trial reportInternational journal of psychophysiology : official journal of the International Organization of Psychophysiology2011

Alpha-2 adrenergic challenge with guanfacine one month after mild traumatic brain injury: altered working memory and BOLD response.

Thomas W McAllister, Brenna C McDonald, Laura A Flashman, Richard B Ferrell, Tor D Tosteson, Norman N Yanofsky, Margaret R Grove, Andrew J Saykin

Abstract readRandomized Controlled Trial
In one paragraph

Trial report in International journal of psychophysiology : official journal of the International Organization of Psychophysiology, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 33 papers.

0numbers the graph read from it
0cells of the map it votes in
33citing papers in PubMed
–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

33 citing papers in PubMed.

  1. Trial
  2. Review
  3. Article
  4. Article
  5. Article
  6. Combined Use of Guanfacine andNeurotrauma reports · 2024
    Article
  7. Review
  8. Review
  9. Review
  10. Review
  11. Observational
  12. Review
  13. Article
  14. Article
  15. Review
  16. Review
  17. Review
  18. Review
  19. Cholinergic, But Not Dopaminergic or Noradrenergic, Enhancement Sharpens Visual Spatial Perception in Humans.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2017
    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

8 authors.

Thomas W McAllisterSection of Neuropsychiatry, Department of Psychiatry, Dartmouth Medical School, Lebanon, NH 03756, USA. thomas.w.mcallister@dartmouth.edu
Brenna C McDonald
Laura A Flashman
Richard B Ferrell
Tor D Tosteson
Norman N Yanofsky
Margaret R Grove
Andrew J Saykin

Funding

Translational Engineering in Cancer (TEC)P30CA023108 · NCI · DARTMOUTH COLLEGE · PI Fred W Kolling IV · 1985 to 2026
$91.3M
DOPAMINERGIC MODULATION WORKING MEMORY TBI--FMRI STUDYR01NS040472 · NINDS · DARTMOUTH COLLEGE · PI MCALLISTER, THOMAS · 2000 to 2003
$1.2M
NCI NIH HHS P30 CA023108NINDS NIH HHS R01 NS040472NINDS NIH HHS R01 NS40472-01
6 · The paper itself

Abstract

Alterations in working memory (WM) are common after traumatic brain injury (TBI). Frontal catecholaminergic systems, including the alpha-2 adrenergic system, modulate WM function and may be affected in TBI. We hypothesized that administration of an alpha-2 adrenergic agonist might improve WM after mild TBI (MTBI). Thirteen individuals with MTBI 1month after injury and 14 healthy controls (HC) were challenged with guanfacine and placebo prior to administration of a verbal WM functional MRI task. Guanfacine was associated with improved WM performance in the MTBI but not the HC group. On guanfacine the MTBI group showed increased activation within a WM task-specific region of interest. Findings are consistent with the hypothesis that alterations in WM after MTBI may be improved with the alpha-2 agonist guanfacine.

Indexed as

Adrenergic alpha-2 Receptor AgonistsAdultBrainBrain InjuriesBrain MappingCognition DisordersDouble-Blind MethodFemaleGuanfacineHumansImage Processing, Computer-AssistedMagnetic Resonance ImagingMaleMemory DisordersMemory, Short-TermNeuropsychological TestsAdrenergic alpha-2 Receptor AgonistsGuanfacineOxygen

Identifiers

PMID21767584
PMCPMC3210922

What OpenQuestion holds

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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.