Evidence map›Paper›PMID 31246996›Full record

ArticlePLoS biology2019

Fully automated leg tracking of Drosophila neurodegeneration models reveals distinct conserved movement signatures.

Shuang Wu, Kah Junn Tan, Lakshmi Narasimhan Govindarajan, James Charles Stewart, Lin Gu, Joses Wei Hao Ho, Malvika Katarya, Boon Hui Wong, Eng-King Tan, Daiqin Li and 4 more

Open access · goldAbstract read
In one paragraph

Article in PLoS biology, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
20citing papers in PubMed, 1 pooled it
1.9field-weighted citation impact, top 15% 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

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

  1. Pooled it
  2. Autobehaver: An AI-Based Pipeline for Animal Behavior Analysis.bioRxiv : the preprint server for biology · 2026
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  5. Machine Learning Scoring Reveals Increased Frequency of Falls Proximal to Death in Drosophila melanogaster.The journals of gerontology. Series A, Biological sciences and medical sciences · 2025
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  6. Neurofibromin Deficiency Alters the Patterning and Prioritization of Motor Behaviors in a State-Dependent Manner.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2025
    Article
  7. GABAergic neurons are a key cell type in aFrontiers in neuroscience · 2025
    Article
  8. Decoding Nucleotide Repeat Expansion Diseases: Novel Insights fromInternational journal of molecular sciences · 2024
    Review
  9. Article
  10. Article
  11. Article
  12. Article
  13. Motor dysfunction iniScience · 2022
    Article
  14. Article
  15. Article
  16. Review
  17. Review
  18. Essential tremor.Nature reviews. Disease primers · 2021
    Review
  19. Extended Study ofFrontiers in neurology · 2020
    Article
  20. A locomotor assay reveals deficits in heterozygous Parkinson's disease model and proprioceptive mutants in adultProceedings of the National Academy of Sciences of the United States of America · 2019
    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

14 authors at 3 institutions in 2 countries.

Shuang WuBioinformatics Institute, Agency for Science, Technology and Research, Singapore.
Kah Junn TanInstitute of Molecular and Cell Biology, Agency for Science, Technology and Research, Singapore.ORCID 0000-0002-8319-0588
Lakshmi Narasimhan GovindarajanBioinformatics Institute, Agency for Science, Technology and Research, Singapore.
James Charles StewartInstitute of Molecular and Cell Biology, Agency for Science, Technology and Research, Singapore.ORCID 0000-0002-3011-2500
Lin GuBioinformatics Institute, Agency for Science, Technology and Research, Singapore.
Joses Wei Hao HoInstitute of Molecular and Cell Biology, Agency for Science, Technology and Research, Singapore.ORCID 0000-0002-9186-6322
Malvika KataryaInstitute of Molecular and Cell Biology, Agency for Science, Technology and Research, Singapore.
Boon Hui WongNational University of Singapore, Department of Biological Sciences, Singapore.
Eng-King TanNational Neuroscience Institute, Singapore General Hospital, Singapore.
Daiqin LiNational University of Singapore, Department of Biological Sciences, Singapore.
Adam Claridge-ChangInstitute of Molecular and Cell Biology, Agency for Science, Technology and Research, Singapore.ORCID 0000-0002-4583-3650
Camilo LibedinskyInstitute of Molecular and Cell Biology, Agency for Science, Technology and Research, Singapore.
Li ChengBioinformatics Institute, Agency for Science, Technology and Research, Singapore.
Sherry Shiying AwInstitute of Molecular and Cell Biology, Agency for Science, Technology and Research, Singapore.ORCID 0000-0003-3067-0323
Agency for Science, Technology and Research · SGNational University of Singapore · SGSingapore General Hospital · SG

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Some neurodegenerative diseases, like Parkinsons Disease (PD) and Spinocerebellar ataxia 3 (SCA3), are associated with distinct, altered gait and tremor movements that are reflective of the underlying disease etiology. Drosophila melanogaster models of neurodegeneration have illuminated our understanding of the molecular mechanisms of disease. However, it is unknown whether specific gait and tremor dysfunctions also occur in fly disease mutants. To answer this question, we developed a machine-learning image-analysis program, Feature Learning-based LImb segmentation and Tracking (FLLIT), that automatically tracks leg claw positions of freely moving flies recorded on high-speed video, producing a series of gait measurements. Notably, unlike other machine-learning methods, FLLIT generates its own training sets and does not require user-annotated images for learning. Using FLLIT, we carried out high-throughput and high-resolution analysis of gait and tremor features in Drosophila neurodegeneration mutants for the first time. We found that fly models of PD and SCA3 exhibited markedly different walking gait and tremor signatures, which recapitulated characteristics of the respective human diseases. Selective expression of mutant SCA3 in dopaminergic neurons led to a gait signature that more closely resembled those of PD flies. This suggests that the behavioral phenotype depends on the neurons affected rather than the specific nature of the mutation. Different mutations produced tremors in distinct leg pairs, indicating that different motor circuits were affected. Using this approach, fly models can be used to dissect the neurogenetic mechanisms that underlie movement disorders.

Indexed as

AnimalsDisease Models, AnimalDrosophila melanogasterDrosophila ProteinsExtremitiesGaitGait AnalysisImage Processing, Computer-AssistedMachado-Joseph DiseaseMachine LearningMovementNeurodegenerative DiseasesParkinson DiseaseDrosophila Proteins

Identifiers

PMID31246996
PMCPMC6619818
OpenAlexW2954041903

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.