What question did this study set out to answer?

The aim is to investigate the relationship between TDP-43 pathology and motor neuron loss in ALS.

Reduced nuclear TDP-43 and cytoplasmic DLK1 as markers of motor neuron degeneration in amyotrophic lateral sclerosis

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Study reveals markers of motor neuron degeneration in ALS, suggesting implications for disease understanding.

The aim is to investigate the relationship between TDP-43 pathology and motor neuron loss in ALS.
Included autopsy samples from 7 ALS patients and 3 controls.
Measured cell density and TDP-43-positive inclusions in specific motor neuron areas.
Counted large cells lacking nuclear TDP-43 and cytoplasmic DLK1.
Severe motor neuron loss was observed in both upper and lower areas.
TDP-43-positive inclusions were rare in upper motor neurons but abundant in lower motor neurons.
Higher numbers of motor neurons lacking nuclear TDP-43 and cytoplasmic DLK1 were found in ALS patients compared to controls.

Takeda et al. (2026) studied this question.

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