Nature-published work from Helmholtz Munich and LMU Munich found obese mice had fewer trigeminal nerve branches and damaged endings, pointing to previously hidden facial nerve injury.
MouseMapper drove the finding by automatically analyzing whole-body, cell-level 3D scans from transparent mice, identifying 31 organs and tracking nerve networks and inflammation across the body.
Behavioral tests showed obese mice were less sensitive to touch and sensory stimulation, while the trigeminal ganglion carried inflammation-related molecular changes.
Human tissue from people with obesity showed many of the same molecular patterns, suggesting the mouse finding could reflect similar nerve damage in humans.
Researchers say the AI platform could help study diabetes, cancer and neurodegenerative disease, and eventually support digital-twin models that test treatments while reducing animal experiments.
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MouseMapper Reveals Systemic Effects of Obesity: AI Uncovers Widespread Nerve Damage and Inflammation
Overview
MouseMapper, a cutting-edge artificial intelligence platform developed by researchers at Helmholtz Munich and LMU, marks a major breakthrough in disease research. Published in Nature in May 2026, MouseMapper uses deep learning built on the VesselFM model to provide an integrated, whole-body analysis system. This allows scientists to map disease-related changes at the cellular level and identify disease hotspots throughout the body. The platform has revealed previously unknown impacts of obesity, showing how it causes widespread nerve damage and inflammation, and represents a significant step forward in understanding diseases as interconnected processes.