Evidence map›Paper›PMID 34880241›Full record

ReviewNPJ Parkinson's disease2021

Unlucky punches: the vulnerability-stress model for the development of impulse control disorders in Parkinson's disease.

Hendrik Theis, Catharina Probst, Pierre-Olivier Fernagut, Thilo van Eimeren

Abstract readReview
In one paragraph

Review in NPJ Parkinson's disease, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.

0numbers the graph read from it
0cells of the map it votes in
11citing 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

11 citing papers in PubMed.

  1. Review
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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.

Hendrik TheisUniversity of Cologne, Faculty of Medicine and University Hospital Cologne, Department of Nuclear Medicine and Department of Neurology, Cologne, Germany.
Catharina ProbstUniversity of Cologne, Faculty of Medicine and University Hospital Cologne, Department of Nuclear Medicine and Department of Neurology, Cologne, Germany.
Pierre-Olivier FernagutUniversité de Poitiers, INSERM, Laboratoire de Neurosciences Expérimentales et Cliniques, Poitiers, France.ORCID http://orcid.org/0000-0002-7737-5439
Thilo van EimerenUniversity of Cologne, Faculty of Medicine and University Hospital Cologne, Department of Nuclear Medicine and Department of Neurology, Cologne, Germany. thilo.van-eimeren@uk-koeln.de.ORCID http://orcid.org/0000-0002-6951-2325

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Impulse-control disorders are commonly observed during dopamine-replacement therapy in Parkinson's disease, but the majority of patients seems "immune" to this side effect. Epidemiological evidence suggests that a major risk factor may be a specific difference in the layout of the dopaminergic-reinforcement system, of which the ventral striatum is a central player. A series of imaging studies of the dopaminergic system point toward a presynaptic reduction of dopamine-reuptake transporter density and dopamine synthesis capacity. Here, we review current evidence for a vulnerability-stress model in which a relative reduction of dopaminergic projections to the ventral striatum and concomitant sensitization of postsynaptic neurons represent a predisposing (hypodopaminergic) vulnerability. Stress (hyperdopaminergic) is delivered when dopamine replacement therapy leads to a relative overdosing of the already-sensitized ventral striatum. These alterations are consistent with consecutive changes in reinforcement mechanisms, which stimulate learning from reward and impede learning from punishment, thereby fostering the development of impulse-control disorders. This vulnerability-stress model might also provide important insights into the development of addictions in the non-Parkinsonian population.

Identifiers

PMID34880241
PMCPMC8654901

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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.