How does calcium dysregulation at synapses contribute to AD and PD synaptopathy?

synaptic biology open
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Description

The abstract mentions Ca2+ in relation to synaptic dysfunction but the text cuts off, leaving the role of calcium signaling unexplained. Calcium dysregulation is a key mechanism in neurodegeneration that requires clarification.

Gap type: unexplained_observation Source paper: Gene therapy targeting synaptopathy linked with Alzheimer’s and Parkinson’s disease. (2026, Neuroscience, PMID:41730496)

Resolution criteria

[“Synapse-specific calcium imaging (GCaMP6s) in AD/PD mouse models shows Ca2+ influx patterns that distinguish early vs late synaptopathy”, “Voltage-clamp recordings in hippocampal slices from 6-month-old APP/PS1 mice reveal specific L-type vs N-type channel contributions to dysregulated Ca2+”, “Therapeutic blockade of dysregulated Ca2+ channels (e.g., L-type with isradipine) reverses synaptic plasticity deficits (LTP) by >=50%”, “Human iPSC-derived neurons from AD patients show similar Ca2+ dysregulation pattern validated by ratiometric imaging”]

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