Evidence map›Paper›PMID 29056652›Full record

ReviewToxics2015

L-Dopa and Brain Serotonin System Dysfunction.

Branden J Stansley, Bryan K Yamamoto

Open access · goldAbstract readReview
In one paragraph

Review in Toxics, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 30 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
30citing papers in PubMed, 1 pooled it
2.0field-weighted citation impact, top 14% 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

30 citing papers in PubMed, 1 synthesis or guideline pooled it, 59 citations in OpenAlex.

  1. Pooled it
  2. Plant-derived therapies in Parkinson's disease: a systematic review of clinical evidence.Journal of neural transmission (Vienna, Austria : 1996) · 2026
    Review
  3. Review
  4. Article
  5. Article
  6. Article
  7. Levodopa treatment: impacts and mechanisms throughout Parkinson's disease progression.Journal of neural transmission (Vienna, Austria : 1996) · 2025
    Review
  8. Article
  9. Review
  10. Article
  11. Review
  12. Review
  13. Article
  14. Review
  15. Article
  16. Article
  17. Article
  18. Review
  19. Serotonergic system in vivo with [Scientific reports · 2022
    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

2 authors at 1 institution in 1 country.

Branden J StansleyDepartment of Neurosciences, University of Toledo College of Medicine, 3000 Arlington Ave, Toledo, OH 43561, USA. branden.stansley@utoledo.edu.
Bryan K YamamotoDepartment of Neurosciences, University of Toledo College of Medicine, 3000 Arlington Ave, Toledo, OH 43561, USA. bryan.yamamoto@utoledo.edu.
University of Toledo · US

Funding

METHAMPHETAMINE TOXICITY AND CORTICOSTRIATAL GLUTAMATER01DA007606 · NIDA · UNIVERSITY OF TOLEDO HEALTH SCI CAMPUS · PI YAMAMOTO, BRYAN K · 1992 to 2016
$5.1M
Methamphetamine, Stress and Brain EndotheliumR01DA035499 · NIDA · UNIVERSITY OF TOLEDO HEALTH SCI CAMPUS · PI YAMAMOTO, BRYAN K · 2013 to 2017
$2.2M
NIDA NIH HHS R01 DA007606NIDA NIH HHS R01 DA035499
6 · The paper itself

Abstract

L-dopa is used to treat the motor symptoms associated with Parkinson's disease, a neurodegenerative movement disorder characterized by a loss of dopamine neurons. L-dopa is the precursor to dopamine and crosses the blood-brain barrier to increase dopamine neurotransmission. This review will focus on the findings that dopamine produced from L-dopa is mediated in part by serotonin neurons. Direct evidence will be provided that increases in dopamine cause oxidative stress and damage serotonin neurons. Similarly, chronic L-dopa produces deficits in serotonin neurotransmission, including decreases in both serotonin cell bodies within the dorsal raphe and serotonin neurotransmitter concentrations in several forebrain regions. Since serotonin is involved in many important physiological processes including mood and cognition, L-dopa induced serotonin deficits may play a role in the side-effect symptoms observed in Parkinson's disease patients treated with L-dopa.

Indexed as

6-hydroxydopaminedopamineL-dopanon-motor symptomsParkinson’s diseaseserotonin neurons

Identifiers

PMID29056652
PMCPMC5634697
OpenAlexW1977283556

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.