NMJ-Analyser

NMJ-Analyser quantifies and classifies neuromuscular junction (NMJ) morphology to provide high-throughput, quantitative assessment of NMJ structure and innervation status in neuromuscular disease models.


Key Features:

  • Automated Morphological Screening: Generates 29 biologically relevant features to quantitatively define healthy and aberrant neuromuscular synapses.
  • Machine Learning Integration: Employs machine learning algorithms to diagnose NMJ degeneration, validated with 95% accuracy, 88% sensitivity, and 97% specificity.
  • High-Throughput Image Processing: Processes input directories of jpg or png image files and requires NMJs to be separated by at least 20 micrometers to avoid analysis compromise.

Scientific Applications:

  • Longitudinal and comparative studies: Validated in longitudinal studies of wildtype mice and four neuromuscular disease models, including three amyotrophic lateral sclerosis (ALS) models and one peripheral neuropathy model.
  • NMJ pathology detection in ALS models: Detects structural changes at the NMJ, particularly in nerve terminals of mutant TDP43 and FUS ALS models, supporting analysis of early degeneration and disease progression.

Methodology:

Processes jpg/png NMJ images from input directories, extracts 29 morphological features and applies machine learning algorithms for classification; requires NMJs separated ≥20 micrometers.

Topics

Details

License:
Apache-2.0
Tool Type:
command-line tool
Programming Languages:
Python
Added:
1/18/2021
Last Updated:
3/8/2021

Operations

Publications

Maza AM, Jarvis S, Lee WC, Cunningham TJ, Schiavo G, Secrier M, Fratta P, Sleigh JN, Sudre CH, Fisher EM. NMJ-Analyser: high-throughput morphological screening of neuromuscular junctions identifies subtle changes in mouse neuromuscular disease models. Unknown Journal. 2020. doi:10.1101/2020.09.24.293886.