Tool development

Arnold, Don

Professor of Biological Sciences

The Arnold lab develops molecular tools for studying and manipulating neural circuits. We have developed novel recombinant probes known as FingRs, which label synaptic proteins such as PSD95, Gephyrin, and CamKii with high fidelity without causing off-target effects. We have used FingRs to visualize the formation of memories in larval zebrafish. These probes can also be used to ablate synapses, leading to functional disruption of neural circuits in a fast, efficient, and reversible manner. More recently, we developed ATLAS, a protein that mediates anterograde tracing of neural circuits from genetically determined neurons. We believe that ATLAS and its variants for tracing neuromodulatory circuits will be powerful tools for observing and manipulating neural circuits in the context of living organisms.

Bonaguidi, Michael

Associate Professor of Stem Cell and Regenerative Medicine

Cognitive impairment (CI) is a burdensome neurological condition that occurs during aging, Alzheimer’s disease (AD), and is a common co-morbidity in many neurodegenerative diseases, including epilepsy. Unfortunately, CI prevalence continues to accelerate due to population aging and emerging therapies only slows CI by a few months. Our research seeks to develop regenerative medicine and provide longer-lasting benefits to CI through brain restoration. We are establishing endogenous brain regeneration as a therapeutic approach for CI in pre-clinical animals and people by (1) investigating neural stem cell behavior in aging, AD and epilepsy, (2) developing computational/AI drug discovery tools for precision medicine to treat CI, and (3) partnering with physicians for human research and clinical trials to translate our findings.

Choupan, Jeiran

Assistant Professor Of Research Neurology

I have been working in the field of neuroimage processing and computational neuroscience since 2009. My focus is on employing advanced neuroimaging and machine learning techniques to improve structural and functional mapping of the brain to study neurodegenerative disorders. In particular, my main research focus is on mapping vascular and perivascular features of the brain across lifespan in health and in the presence of cognitive decline and dementia. Perivascular space is a major component of the brain clearance system and plays an important role in maintaining a healthy functioning brain, particularly in elderly and individuals at risk of neurodegenerative disease.

Gnedeva, Ksenia

Assistant Professor of Otolaryngology - Head and Neck Surgery and Stem Cell Biology & Regenerative Medicine

Our perception of the environment relies on specialized cellular receptors residing in epithelial sensory organs. While olfactory and gustatory receptor cells are naturally reproduced throughout life in order to sustain the senses of smell and taste, age-related degeneration of retinal, auditory, and vestibular sensory organs is largely irreversible in humans. In the Gnedeva laboratory, we interrogate how molecular signaling and tissue mechanics control embryonic sensory organ growth and how the developmental programs of self-renewal and differentiation can be re-initiated in the mammalian inner ear after damage. Although the focus of our research is on hearing and balance restoration, our lab has broader interest in the common mechanisms that suppress regeneration in specialized sensory tissues.

Hahn, Joel

Associate Professor (Research) of Biological Sciences

The overall goal / objective of my research is to increase scientific understanding of the fundamental structure/function relations of the nervous system. Using a variety of research methods, I have investigated neural circuits relating to specific functions (for example, neuroendocrine control of reproduction, eating, and agonistic behaviors), as well as high-level global network organization of the brain. My current research is geared mostly to developing and investigating nervous system network models, and to building tools and resources for systems neuroscience, and more recently for comparing neuroanatomical ontologies within and between species, to simplify and enable more accurate interpretation and communication of neuroscience data.

Han, S.Duke

Professor of Psychology and Family Medicine

The Han Research Laboratory is dedicated to improving the health, wellbeing, and independence of adults living into old age. We are interested in investigating the diverse factors and neurobiological mechanisms that impact cognition and decision making across the lifespan using multidisciplinary approaches informed by the fields of neuropsychology, cognitive and systems neuroscience, epidemiology, genetics, and behavioral economics.