Evidence map›Paper›PMID 22647713›Full record

ArticleMolecular neurodegeneration2012

LRRK2 knockout mice have an intact dopaminergic system but display alterations in exploratory and motor co-ordination behaviors.

Kelly M Hinkle, Mei Yue, Bahareh Behrouz, Justus C Dächsel, Sarah J Lincoln, Erin E Bowles, Joel E Beevers, Brittany Dugger, Beate Winner, Iryna Prots and 7 more

Open access · goldAbstract read
In one paragraph

Article in Molecular neurodegeneration, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 100 papers.

0numbers the graph read from it
0cells of the map it votes in
100citing papers in PubMed
9.7field-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

100 citing papers in PubMed, 190 citations in OpenAlex.

  1. Article
  2. LRRK2 as a Potential Disease-Modifying Target in Sporadic Parkinson's Disease.Movement disorders : official journal of the Movement Disorder Society · 2026
    Review
  3. MicroRNAs and synaptic dysfunction in Parkinson's disease.Molecular therapy. Nucleic acids · 2025
    Review
  4. Article
  5. Affective phenotypes in heterozygousFrontiers in genetics · 2025
    Article
  6. Review
  7. Article
  8. Review
  9. Review
  10. Article
  11. LRRK2 suppresses lysosome degradative activity in macrophages and microglia through MiT-TFE transcription factor inhibition.Proceedings of the National Academy of Sciences of the United States of America · 2023
    Article
  12. Impaired dopamine release in Parkinson's disease.Brain : a journal of neurology · 2023
    Review
  13. Review
  14. Lysosomal Pathogenesis of Parkinson's Disease: Insights From LRRK2 and GBA1 Rodent Models.Neurotherapeutics : the journal of the American Society for Experimental NeuroTherapeutics · 2023
    Review
  15. Review
  16. Review
  17. Review
  18. Article
  19. Article
  20. Review

40 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

17 authors at 2 institutions in 2 countries.

Kelly M HinkleDepartment of Neuroscience, Mayo Clinic, Jacksonville, Florida 32224, USA.
Mei Yue
Bahareh Behrouz
Justus C Dächsel
Sarah J Lincoln
Erin E Bowles
Joel E Beevers
Brittany Dugger
Beate Winner
Iryna Prots
Caroline B Kent
Kenya Nishioka
Wen-Lang Lin
Dennis W Dickson
Christopher J Janus
Matthew J Farrer
Heather L Melrose
Mayo Clinic in Florida · USUniversity of Florida · US

Funding

Genetics and Molecular Biology of ParkinsonismP50NS040256 · NINDS · MAYO CLINIC JACKSONVILLE · PI DICKSON, DENNIS WILLIAM · 2004 to 2009
$8.9M
Neuropathology CoreP50NS072187 · NINDS · MAYO CLINIC JACKSONVILLE · PI DICKSON, DENNIS WILLIAM · 2010 to 2017
$8.7M
MORRIS K. UDALL PARKINSONS DISEASE RESEARCH CENTER OF EXP01NS040256 · NINDS · MAYO CLINIC COLL OF MED, JACKSONVILLE · PI DICKSON, DENNIS WILLIAM · 1999 to 2003
$5.2M
Functional Characterization of LRRK2 Knock-out and Knock-in Mouse ModelsR01NS065860 · NINDS · MAYO CLINIC JACKSONVILLE · PI MELROSE, HEATHER L · 2010 to 2012
$803k
NINDS NIH HHS NS065860NINDS NIH HHS NS072187NINDS NIH HHS NS40256
6 · The paper itself

Abstract

Mutations in the LRRK2 gene are the most common cause of genetic Parkinson's disease. Although the mechanisms behind the pathogenic effects of LRRK2 mutations are still not clear, data emerging from in vitro and in vivo models suggests roles in regulating neuronal polarity, neurotransmission, membrane and cytoskeletal dynamics and protein degradation.We created mice lacking exon 41 that encodes the activation hinge of the kinase domain of LRRK2. We have performed a comprehensive analysis of these mice up to 20 months of age, including evaluation of dopamine storage, release, uptake and synthesis, behavioral testing, dendritic spine and proliferation/neurogenesis analysis.Our results show that the dopaminergic system was not functionally comprised in LRRK2 knockout mice. However, LRRK2 knockout mice displayed abnormal exploratory activity in the open-field test. Moreover, LRRK2 knockout mice stayed longer than their wild type littermates on the accelerated rod during rotarod testing. Finally, we confirm that loss of LRRK2 caused degeneration in the kidney, accompanied by a progressive enhancement of autophagic activity and accumulation of autofluorescent material, but without evidence of biphasic changes.

Indexed as

AnimalsAutophagyBehavior, AnimalDopamineKidneyLeucine-Rich Repeat Serine-Threonine Protein Kinase-2MiceMice, Inbred C57BLMice, KnockoutMutationNeuronsParkinson DiseaseProtein Serine-Threonine KinasesDopamineLeucine-Rich Repeat Serine-Threonine Protein Kinase-2Lrrk2 protein, mouseProtein Serine-Threonine Kinases

Identifiers

PMID22647713
PMCPMC3441373
OpenAlexW2116709932

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.