aNMJ-morph

aNMJ-morph automates quantitative morphometric analysis of neuromuscular junction (NMJ) images to produce standardized, reproducible measurements of 19 pre- and post-synaptic variables for neurobiological and connectomics research.

Key Features:

• Standardized Morphometric Analysis: Extends the NMJ-morph standardized approach to provide a common platform for analyzing and integrating NMJ data across laboratories.
• Automated Workflow: Utilizes ImageJ macro language to encode the complete NMJ-morph workflow into seven navigation windows that automate sequential analysis steps.
• Enhanced Data Acquisition Rate: Delivers a fourfold increase in data acquisition rate compared to the original NMJ-morph workflow, reducing average analysis time to approximately one minute per NMJ.
• Validation and Reproducibility: Validation against parent-workflow reference data and inter-investigator comparisons of 240 NMJs demonstrated strong concordance across all morphological variables.

Scientific Applications:

• Quantitative NMJ morphology: Provides detailed, quantitative measurements of NMJ pre- and post-synaptic structure to support studies of synapse form and function.
• Connectomics and large-scale analyses: Enables high-throughput acquisition suitable for large datasets and connectomics investigations.
• Cross-laboratory comparative studies: Supports standardized, comparable analyses for multi-investigator and cross-laboratory reproducibility studies.

Methodology:

Implemented as an ImageJ macro using ImageJ macro language that encodes the NMJ-morph workflow into seven navigation windows, outputs 19 individual pre- and post-synaptic morphometric variables, and was validated against parent-workflow reference data with comparisons on 240 NMJs.