Evidence map›Paper›PMID 25814977›Full record

ReviewFrontiers in neurology2015

The dopamine imbalance hypothesis of fatigue in multiple sclerosis and other neurological disorders.

Ekaterina Dobryakova, Helen M Genova, John DeLuca, Glenn R Wylie

Open access · goldAbstract readReview
In one paragraph

Review in Frontiers in neurology, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 118 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
118citing papers in PubMed, 3 pooled it
12.4field-weighted citation impact, top 1% 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

118 citing papers in PubMed, 3 syntheses or guidelines pooled it, 236 citations in OpenAlex.

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  11. Towards a domain-general mechanistic model of fatigue: application to Functional Neurological Disorder.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2026
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58 more citing papers are in PubMed but not listed here.

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

4 authors at 2 institutions in 1 country.

Ekaterina DobryakovaTraumatic Brain Injury Laboratory, Kessler Foundation , West Orange, NJ , USA ; Department of Physical Medicine and Rehabilitation, Rutgers - New Jersey Medical School , Newark, NJ , USA.
Helen M GenovaDepartment of Physical Medicine and Rehabilitation, Rutgers - New Jersey Medical School , Newark, NJ , USA ; Neuropsychology and Neuroscience Laboratory, Kessler Foundation , West Orange, NJ , USA.
John DeLucaDepartment of Physical Medicine and Rehabilitation, Rutgers - New Jersey Medical School , Newark, NJ , USA ; Neuropsychology and Neuroscience Laboratory, Kessler Foundation , West Orange, NJ , USA ; Department of Neurology and Neurosciences, Rutgers - New Jersey Medical School , Newark, NJ , USA.
Glenn R WylieDepartment of Physical Medicine and Rehabilitation, Rutgers - New Jersey Medical School , Newark, NJ , USA ; Neuropsychology and Neuroscience Laboratory, Kessler Foundation , West Orange, NJ , USA ; War Related Illness and Injury Study Center, Department of Veterans Affairs , East Orange, NJ , USA.
Rutgers, The State University of New Jersey · USKessler Foundation · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Fatigue is one of the most pervasive symptoms of multiple sclerosis (MS), and has engendered hundreds of investigations on the topic. While there is a growing literature using various methods to study fatigue, a unified theory of fatigue in MS is yet to emerge. In the current review, we synthesize findings from neuroimaging, pharmacological, neuropsychological, and immunological studies of fatigue in MS, which point to a specific hypothesis of fatigue in MS: the dopamine imbalance hypothesis. The communication between the striatum and prefrontal cortex is reliant on dopamine, a modulatory neurotransmitter. Neuroimaging findings suggest that fatigue results from the disruption of communication between these regions. Supporting the dopamine imbalance hypothesis, structural and functional neuroimaging studies show abnormalities in the frontal and striatal regions that are heavily innervated by dopamine neurons. Further, dopaminergic psychostimulant medication has been shown to alleviate fatigue in individuals with traumatic brain injury, chronic fatigue syndrome, and in cancer patients, also indicating that dopamine might play an important role in fatigue perception. This paper reviews the structural and functional neuroimaging evidence as well as pharmacological studies that suggest that dopamine plays a critical role in the phenomenon of fatigue. We conclude with how specific aspects of the dopamine imbalance hypothesis can be tested in future research.

Indexed as

dopaminefatiguemesocorticolimbic systemmethylphenidateMRI

Identifiers

PMID25814977
PMCPMC4357260
OpenAlexW1973717649

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.