Evidence map›Paper›PMID 22287946›Full record

ArticleFrontiers in human neuroscience2011

A role for locus coeruleus in Parkinson tremor.

Ioannis U Isaias, Alberto Marzegan, Gianni Pezzoli, Giorgio Marotta, Margherita Canesi, Gabriele E M Biella, Jens Volkmann, Paolo Cavallari

Open access · goldAbstract read
In one paragraph

Article in Frontiers in human neuroscience, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 36 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
36citing papers in PubMed, 1 pooled it
2.3field-weighted citation impact, top 13% 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.

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

36 citing papers in PubMed, 1 synthesis or guideline pooled it, 64 citations in OpenAlex.

  1. Pooled it
  2. The Noradrenergic Brain in Parkinson's Disease.Current neurology and neuroscience reports · 2026
    Review
  3. Article
  4. Article
  5. Article
  6. Tremor pathophysiology.Clinical parkinsonism & related disorders · 2026
    Review
  7. Article
  8. Article
  9. Article
  10. Article
  11. Article
  12. Article
  13. Article
  14. The Contribution of Noradrenergic Activity to Anxiety-Induced Freezing of Gait.Movement disorders : official journal of the Movement Disorder Society · 2022
    Article
  15. Review
  16. Article
  17. The Molecular Neuroimaging of Tremor.Current neurology and neuroscience reports · 2021
    Review
  18. Article
  19. Article
  20. 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

8 authors at 5 institutions in 2 countries.

Ioannis U IsaiasDipartimento di Fisiologia Umana, Laboratorio Analisi del Movimento L.A.M.B., Università degli Studi di Milano Milano, Italy.
Alberto Marzegan
Gianni Pezzoli
Giorgio Marotta
Margherita Canesi
Gabriele E M Biella
Jens Volkmann
Paolo Cavallari
Istituti Clinici di Perfezionamento · ITUniversity of Milan · ITFondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico · ITInstitute of Molecular Bioimaging and Physiology · ITKlinik und Poliklinik für Neurologie · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

We analyzed rest tremor, one of the etiologically most elusive hallmarks of Parkinson disease (PD), in 12 consecutive PD patients during a specific task activating the locus coeruleus (LC) to investigate a putative role of noradrenaline (NA) in tremor generation and suppression. Clinical diagnosis was confirmed in all subjects by reduced dopamine reuptake transporter (DAT) binding values investigated by single photon computed tomography imaging (SPECT) with [(123)I] N-ω-fluoropropyl-2β-carbomethoxy-3β-(4-iodophenyl) tropane (FP-CIT). The intensity of tremor (i.e., the power of Electromyography [EMG] signals), but not its frequency, significantly increased during the task. In six subjects, tremor appeared selectively during the task. In a second part of the study, we retrospectively reviewed SPECT with FP-CIT data and confirmed the lack of correlation between dopaminergic loss and tremor by comparing DAT binding values of 82 PD subjects with bilateral tremor (n = 27), unilateral tremor (n = 22), and no tremor (n = 33). This study suggests a role of the LC in Parkinson tremor.

Indexed as

locus coeruleusnoradrenalineParkinson diseasetremor

Identifiers

PMID22287946
PMCPMC3250076
OpenAlexW2125527386

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.