Amyloid PET uptake

Biomarker

2 papers2 findings

  • Humans2

Associations

2

pTau181/Aβ42 ratio

upin humans1

1 study
  1. pTau181/Aβ42 ratio is associated with amyloid PET uptake in humans (standardized β=0.21, 95%CI[0.06,0.36], p = .008).

    “higher pTau181/Aβ42 ratio levels (standardized β=0.21, 95%CI[0.06,0.36], p = .008)”

    Humansadjusted for age, sex, and cognitive groupplasman = 163

    Correlation Between Plasma Biomarkers Identified in Normal, SCD, and MCI subjects, with PET Amyloid and Tau Neuroimaging

    AAIC 2025 abstract9 Jan 2026

More on pTau181/Aβ42 ratio

Phosphorylated tau 181

upin humans1

1 study
  1. Phosphorylated tau 181 is associated with amyloid PET uptake in humans (standardized β=0.19, 95%CI [0.02,0.36], p = .03).

    “Higher amyloid PET uptake was trending with lower plasma Aβ42 (standardized β=‐0.11, 95%CI [‐0.24,0.02], p = .09), and associated with higher pTau181 (standardized β=0.19, 95%CI [0.02,0.36], p = .03)”

    Humansadjusted for age, sex, and cognitive groupplasman = 163

    Correlation Between Plasma Biomarkers Identified in Normal, SCD, and MCI subjects, with PET Amyloid and Tau Neuroimaging

    AAIC 2025 abstract9 Jan 2026

More on Phosphorylated tau 181

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