Amyloid Load in the Down syndrome population measured with [11C] PiB PET

M Zammit, C Laymon, K Cody, A Cohen, D Tudorascu… - 2019 - Soc Nuclear Med
251 Background: Individuals with Down syndrome (DS) are at increased risk of developing
Alzheimer's disease (AD) and show the earliest signs of amyloid-β (Aβ) deposition in the …

Comparison of Amyloid Beta Accumulation in Down Syndrome and Late Onset Cohorts

A McVea, A DiFilippo, M McLachlan, D Murali, Y Xin… - 2022 - Soc Nuclear Med
2604 Introduction: Down syndrome (DS) is characterized by the triplication of chromosome
21, which contains the gene that encodes for amyloid precursor protein (APP). The …

Beta-amyloid accumulates at a faster rate in Down Syndrome than Neurotypical Populations

A McVea, A DiFilippo, M McLachlan, D Murali… - 2023 - Soc Nuclear Med
P493 Introduction: Down syndrome (DS) is characterized by the triplication of chromosome
21, which contains the gene that encodes for amyloid precursor protein (APP). The …

Amyloid accumulation in Down syndrome measured with amyloid load

MD Zammit, CM Laymon, TJ Betthauser… - Alzheimer's & …, 2020 - Wiley Online Library
Abstract Introduction Individuals with Down syndrome (DS) show enhanced amyloid beta
(Aβ) deposition in the brain. A new positron emission tomography (PET) index of amyloid …

Amyloid load: a more sensitive biomarker for amyloid imaging

A Whittington, RN Gunn - Journal of Nuclear Medicine, 2019 - Soc Nuclear Med
Amyloid-β (Aβ) plays a key role in the pathogenesis of Alzheimer disease (AD) and can be
imaged in vivo using 18F-florbetapir PET. A composite SUV ratio (SUVr) is a commonly used …

An accelerated rate of Beta‐amyloid Measured with [C‐11] PiB in Down Syndrome compared to Neurotypical Populations

AK McVea, AH DiFilippo, M McLachlan… - Alzheimer's & …, 2023 - Wiley Online Library
Background Down syndrome (DS) is characterized by a higher risk and earlier onset of beta‐
amyloid (Aβ) plaque accumulation and Alzheimer's disease (AD). The triplication of …

Neurofibrillary tau emerges in adults with Down syndrome during the earliest stages of Aβ accumulation

M Zammit, A DiFilippo, T Tullis, A McVea, D Tudorascu… - 2021 - Soc Nuclear Med
42 Introduction: Adults with Down syndrome (DS) are genetically predisposed to Alzheimer's
disease (AD) and accumulate beta-amyloid plaques (Aβ) early in life. The aim of this study …

[CITATION][C] IC‐06‐01: ASSESSMENT OF LONGITUDINAL AMYLOID LOAD CHANGE IN DOWN SYNDROME

MD Zammit, CM Laymon, KA Cody… - Alzheimer's & …, 2019 - Wiley Online Library
Background Trisomy of chromosome 21 in Down syndrome results in an overexpression of
the gene encoding amyloid precursor protein and an early presence of β-amyloid plaques in …

Impact of PET reconstruction parameters on the quantitation of PET Aβ-amyloid

G Ruwanpathirana, R Williams, C Masters, C Rowe… - 2022 - Soc Nuclear Med
3281 Introduction: The commonly employed standardized uptake value ratio (SUVR) and
Centiloid scale (CL) metrics to quantify extracellular Aβ-amyloid (Aβ) plaques are influenced …

Regional associations between amyloid and glucose metabolism during the progression of Alzheimer's disease in Down syndrome

M Zammit, C Laymon, D Tudorascu, A DiFilippo… - 2020 - Soc Nuclear Med
21 Background: Adults with Down syndrome (DS) carry a triplicate copy of chromosome 21
resulting in the overproduction of amyloid precursor protein, with earliest deposition of Aβ …