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Abstract #3067

Hyperpolarized 13C metabolic imaging of Alzheimer’s Disease: impact of sex, genotype and age in the hAPP-J20 mouse model

Marina Radoul1,2, Lydia M. Le Page1,2, Caroline Guglielmetti1,2, Huihui Li3, Ken Nakamura3,4, and Myriam M. Chaumeil1,2
1Radiology and Biomedical Imaging, University of California San Francisco, San Francisco, CA, United States, 2Department of Physical Therapy and Rehabilitation Science, University of California San Francisco, San Francisco, CA, United States, 3Gladstone Institute of Neurological Disease. Gladstone Institutes, San Francisco, CA, United States, 4Department of Neurology, University of California San Francisco, San Francisco, CA, United States

Synopsis

Keywords: Hyperpolarized MR (Non-Gas), Alzheimer's Disease, metabolism, hyperpolarized 13C

Motivation: The accelerating prevalence of Alzheimer's disease (AD) around the world urges the need not only for more effective treatment but also for improved non-invasive monitoring of onset and progression.

Goal(s): Our goal is to investigate if the clinically expanding HP 13C MR method could improve diagnosis and monitoring of AD.

Approach: hAPP-J20 AD mice and age-/sex-matched wild-type were imaged using HP 13C MR at 2-months-old (presymptomatic) and 14-months-old (amyloid plaques accumulation). The impact of sex, genotype, age, and their interactions, on the derived HP metrics was investigated.

Results: HP13C metabolic imaging can provide crucial information on sexual dimorphism and metabolic aging in AD.

Impact: Hyperpolarized 13C imaging provides unique metabolic information specific to sex and APP mutational status in an AD model. Upon clinical translation, such method could improve early diagnosis and patient-centric monitoring of AD progression, and potentially assessment of therapeutic response.

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