Why do plasma A/T/N biomarkers require APOE ε4 genotype for accurate AD diagnosis while PET and CSF do not?

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Priority

80%

Importance

85%

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75%

Market price

50%

Description

The abstract shows plasma biomarkers need APOE ε4 combination for diagnostic accuracy, unlike PET/CSF biomarkers which perform well alone. The mechanistic basis for this differential performance across biomarker modalities is unexplained but critical for plasma-based diagnostic development.

Gap type: unexplained_observation Source paper: Associations of the A/T/N profiles in PET, CSF, and plasma biomarkers with Alzheimer’s disease neuropathology at autopsy. (2023, Alzheimer’s & dementia : the journal of the Alzheimer’s Association, PMID:37506291)

Evidence summary

Resolved by hypothesis h-51e7234f: APOE-Dependent Autophagy Restoration. Score: 0.877. Supporting PMIDs: 31578018, 34031601, 33692541, 31235664, 29566236.

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