Evidence map›Paper›PMID 23936174›Full record

ArticlePloS one2013

Non-motor and motor features in LRRK2 transgenic mice.

Zoë Bichler, Han Chi Lim, Li Zeng, Eng King Tan

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2013. 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
2.7field-weighted citation impact, top 10% 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

33 citing papers in PubMed, 72 citations in OpenAlex.

  1. Research models to study lewy body dementia.Molecular neurodegeneration · 2025
    Review
  2. Article
  3. Affective phenotypes in heterozygousFrontiers in genetics · 2025
    Article
  4. Exploring LRRK2-dependent Mechanisms in Parkinson's Disease Therapy.CNS & neurological disorders drug targets · 2025
    Review
  5. Review
  6. Review
  7. Review
  8. Article
  9. Review
  10. Review
  11. Article
  12. Review
  13. Failure of Diphtheria Toxin Model to Induce Parkinson-Like Behavior in Mice.International journal of molecular sciences · 2021
    Article
  14. Plasmodium berghei-induced malaria decreases pain sensitivity in mice.The Onderstepoort journal of veterinary research · 2021
    Article
  15. Article
  16. Review
  17. Article
  18. Animal Model for Prodromal Parkinson's Disease.International journal of molecular sciences · 2020
    Review
  19. Review
  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

4 authors at 2 institutions in 1 country.

Zoë BichlerBehavioral Neuroscience Laboratory, National Neuroscience Institute, Singapore, Singapore. zoe.bichler@gmail.com
Han Chi Lim
Li Zeng
Eng King Tan
National Neuroscience Institute · SGSingapore General Hospital · SG

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundNon-motor symptoms are increasingly recognized as important features of Parkinson's disease (PD). LRRK2 mutations are common causes of familial and sporadic PD. Non-motor features have not been yet comprehensively evaluated in LRRK2 transgenic mouse models.

objectiveUsing a transgenic mouse model overexpressing the R1441G mutation of the human LRRK2 gene, we have investigated the longitudinal correlation between motor and non-motor symptoms and determined if specific non-motor phenotypes precede motor symptoms. METHODOLOGY: We investigated the onset of motor and non-motor phenotypes on the LRRK2(R1441G) BAC transgenic mice and their littermate controls from 4 to 21 month-old using a battery of behavioral tests. The transgenic mutant mice displayed mild hypokinesia in the open field from 16 months old, with gastrointestinal dysfunctions beginning at 6 months old. Non-motor features such as depression and anxiety-like behaviors, sensorial functions (pain sensitivity and olfaction), and learning and memory abilities in the passive avoidance test were similar in the transgenic animals compared to littermate controls.

conclusionsLRRK2(R1441G) BAC transgenic mice displayed gastrointestinal dysfunction at an early stage but did not have abnormalities in fine behaviors, olfaction, pain sensitivity, mood disorders and learning and memory compared to non-transgenic littermate controls. The observations on olfaction and gastrointestinal dysfunction in this model validate findings in human carriers. These mice did recapitulate mild Parkinsonian motor features at late stages but compensatory mechanisms modulating the progression of PD in these models should be further evaluated.

Indexed as

Behavior, AnimalAge FactorsAnimalsAnxietyDepressionDisease Models, AnimalGastrointestinal DiseasesGene ExpressionLearningLeucine-Rich Repeat Serine-Threonine Protein Kinase-2MaleMiceMice, TransgenicMotor ActivityMutationParkinson DiseaseLeucine-Rich Repeat Serine-Threonine Protein Kinase-2Lrrk2 protein, mouseProtein Serine-Threonine Kinases

Identifiers

PMID23936174
PMCPMC3728021
OpenAlexW2076335973

What OpenQuestion holds

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LicenceCC BY
Read underepoch 390

Registered trials

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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.