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Nagehan Ayakta

Research Associate

Nagehan graduated from University of California, Berkeley in May 2014 with honors and a bachelor's degree in Molecular and Cell Biology-Neurobiology. She completed her honors thesis at the Jagust laboratory under the guidance of Dr. William Jagust and Dr. Sylvia Villeneuve at the Helen Wills Neuroscience Institute. Her main focus was investigating the temporal and spatial pattern of beta-amyloid accumulation in healthy adults.

At the Memory and Aging Center, Nagehan is a research associate working with Dr. Gil Rabinovici and also continues to work with the Jagust laboratory at Berkeley. Currently she is working on a variety of PET imaging projects studying amyloid, hypometabolism, and tau.

Luke Bonham

Research Coordinator

Luke grew up in Southern California before attending UC Berkeley. Graduating with a degree in business administration, he joined the UC San Francisco Memory and Aging Center in 2013. Prior to joining the Memory and Aging Center, he worked in Dr. Dena Dubal’s lab at UCSF to study sex differences in mouse models of neurodegenerative diseases. He currently works with Jennifer Yokoyama, PhD, and Howard Rosen, MD, to study the genetics of healthy aging and neurodegenerative diseases.

In his free time, Luke likes to ski, camp and hike.

Samir Datta

Research Coordinator

Originally from San Jose, Samir graduated from Northwestern University in 2014 with a bachelor's degree in cognitive science. At Northwestern, he worked as a research assistant in an auditory research laboratory on two main projects: examining the variability of hearing thresholds at the lower end of the frequency range and exploring the effects of psychoacoustic training on otoacoustic emissions. Samir also volunteered in a visual cognition lab, assisting with the generation of visual stimuli for experiments. Samir has been with Dr. Howard Rosen’s lab as a research coordinator since July 2014, assisting with an emotional learning and insight study as well as writing scripts to expedite the data analysis. In his free time, Samir enjoys playing piano/guitar, cooking and spending time with his dogs.

Isabel Hubbard, PhD

Speech Language Pathology Specialist

Dr. Hubbard graduated with a BA degree in speech language pathology from the University of Tennessee and a MS degree in communication disorders from the University of Texas at Dallas. She recently completed her PhD degree in the lab of Dr. Julius Fridriksson at the University of South Carolina. Her research interests include aphasia treatment and recovery in stroke and neurodegenerative disease.

Joanna Hellmuth, MD, MHS

Behavioral Neurology Fellow

Joanna Hellmuth, MD, MHS, joined the UCSF Memory and Aging Center in July 2014 as a behavioral neurology fellow. She provides care to patients with various neurodegenerative disorders and collaborates in the evaluation of patients for the Alzheimer's Disease Research Center (ADRC) and frontotemporal dementia program project grant.

Lisa Kritikos

Research Coordinator

Lisa Kritikos joined the Memory and Aging Center in 2014. Her primary role is managing the New Approaches to Dementia Heterogeneity research, which follows patients with the goal of learning more about dementia to improve early detection and clinical care for patients as part of the UCSF Alzheimer's Disease Research Center.

Julio C. Rojas, MD, PhD

Behavioral Neurology Fellow

Julio Rojas received his medical degree from the Tecnológico de Monterrey School of Medicine in Monterrey, Nuevo León, Mexico. He completed his doctoral studies in neuroscience at the University of Texas at Austin with a dissertation on Strategies of neuroprotection in an in vivo model of retinal degeneration induced by mitochondrial dysfunction. He completed neurology residency at UT Southwestern Medical Center in Dallas. In 2014, he joined the UCSF Memory and Aging Center where he is a behavioral neurology fellow. Dr. Rojas is part of the Clinical Trials team led by Dr. Adam Boxer in which he participates in patient evaluation and monitoring. He provides care to patients with various neurodegenerative disorders and collaborates in the evaluation of patients for the Alzheimer's Disease Research Center (ADRC), frontotemporal dementia program project grant and Rapidly Progressive Dementia Program. Dr. Rojas is interested in experimental neurotherapeutics, and his research focuses on biomarker development and cognitive enhancing interventions.

Noelle Ohanesian

Asst. Clinical Research Coordinator

Originally from upstate New York, Noelle graduated from Duke University in May 2014 with a Bachelor of Science degree in neuroscience and a history minor. While attending school, she worked as a research assistant in Duke's Center for Cognitive Neuroscience, running a study examining the effects of acute stress on memory retention. She also spent a summer working for the Behavioral Lab in the Duke University Fuqua School of Business studying social mimicry in anorexic subjects. Outside of her academic interests, she worked as the Program Director of Duke’s backpacking organization, Project WILD, in which she directed one- and two-week backpacking programs for the freshmen class. Noelle joined the UCSF Memory and Aging Center in June 2014 as a member of the clinical trials team under Dr. Adam Boxer. She is a research coordinator for the asymptomatic Alzheimer’s disease trial.

Caitlin Glennon

Analyst

Caitlin joined the Memory and Aging Center in March 2014. She is currently an analyst working on Dr. Boxer’s clinical trials and research studies. She previously worked in the Department of Neurology at UCSF with the Stroke Sciences Group on both industry and NIH-funded clinical trials.

Dan Luong

Research Coordinator

Dan Luong graduated from Stanford University in 2013 with a bachelor's degree in biology. At Stanford, Dan performed honors research in the Department of Neurology investigating the characteristics of a novel neuronal protein. He also spearheaded a public health program at the Stanford Emergency Department evaluating clinical tools that identify alcohol misuse and abuse in adolescents. On weekends, Dan serves as a Vietnamese interpreter and the supplies coordinator at Pacific Free Clinic, which serves uninsured populations in San Jose, California.

Dan joined the Memory and Aging Center in 2014, where he coordinates the 4-Repeat Tauopathy Neuroimaging Initiative (4RTNI). This longitudinal study aims to develop robust biomarkers to improve reliability for new treatment studies in neurodegenerative diseases and to better understand disease progression.

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