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Arizona Collaborative RCOE

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    About This Center

    The joint Research Center of Excellence is a collaboration between Mayo Clinic in Phoenix/Scottsdale, Arizona, and Banner Sun Health Research Institute (BSHRI) in Sun City, Arizona. This partnership builds upon a 20-year legacy of collaborative research established by the Arizona Study of Aging and Neurodegenerative Disease (AZSAND)/Brain and Body Donation Program (BBDP), integrating shared Lewy body dementia (LBD) resources, expertise, and research initiatives across the East and West Valley of greater Phoenix area. Together, the institutions leverage the specialized skills of more than 40 multidisciplinary team members. This team brings together movement disorders and behavioral neurology specialists, neuropsychologists, psychiatrists, psychologists, and therapists (including occupational, physical, and speech professionals), as well as compassionate social workers and case managers. Each member of this collaborative network is committed to delivering personalized care to individuals with Lewy body disorders and essential support to their families.

    Enhancing this collaborative effort, both Mayo Clinic and Banner Sun Health Research Institute are equipped with cutting-edge neuroimaging technologies, advanced biomarker evaluation capabilities and clinical trial infrastructure. These state-of-the-art tools merge clinical excellence and pioneering research, enable early diagnoses of LBD, and pave the way for timely and targeted interventions.

    Contact Information

    Name: Desiree Osborn (Mayo Clinic)
    Email Address: [email protected]
    Phone Number: (480) 574-2234
    Contact this person for: Clinical trials

    Name: Erin Quackenbush (Mayo Clinic)
    Email Address: [email protected]
    Phone Number: (480) 301-8484
    Contact this person for: Clinical Appointments

    Name: Angela Kuramoto (BSHRI)
    Email Address: [email protected]
    Phone Number: 623-832-6511
    Contact this person for: Clinical trials

    Name: Ernestina Carrillo (BSHRI)
    Email Address: [email protected]
    Phone Number: 623-832-6530
    Contact this person for: Clinical Appointments

    Shannon Chiu, MD, MSc (Mayo Clinic in Phoenix/Scottsdale)

    Dr. Chiu is a Senior Associate Consultant and Assistant Professor of Neurology at Mayo Clinic in Phoenix/Scottsdale, Arizona. Her clinical time is focused on improving care for persons living with Parkinson disease and related conditions. As a movement disorders specialist with a joint appointment in the Department of Neuroscience, she is dedicated to refining early diagnostic methods and monitoring disease progression in Lewy body dementia. Her research explores multimodal biomarkers through advanced techniques such as magnetic resonance imaging, electroencephalography, and assays that detect alpha-synuclein and Alzheimer disease-related pathologies.

    Shannon Chiu, MD, MSc (Mayo Clinic in Phoenix/Scottsdale) photo

    Parichita Choudhury, MD, MSc, FRCPC (Banner Sun Health Research Institute)

    Dr. Choudhury is board-certified in Neurology and Dementia, practices at Banner Sun Health Research Institute (BSHRI) with an appointment as clinical assistant professor at the University of Arizona. In addition to providing clinical care to individuals with dementia, she is co-leader of the clinical core of the Arizona Alzheimer’s Disease Research Center (ADRC). She is involved in multiple clinical trials in Alzheimer’s disease and related disorders at BSHRI as associate investigator for the Alzheimer’s Clinical Trial Consortium (ACTC). Her research areas of interest include early diagnosis of dementia using emerging biomarkers, dementia with Lewy bodies and sex differences in dementia care.


    Drs. Chiu and Choudhury have ongoing clinical and research collaborations through their respective institutions’ joint consortiums to better understand clinicopathological and biofluid correlations in persons living with Lewy body disease.

    Parichita Choudhury, MD, MSc, FRCPC (Banner Sun Health Research Institute) photo
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