Charaziak, Karolina
Assistant Professor of Otolaryngology-Head and Neck Surgery
Hearing loss is one of the most common sensory disabilities, with 350 million people worldwide suffering from hearing impairment. Unfortunately, the development of intervention strategies for overcoming the effects of sensory impairment is hampered by limited understanding of both how the normal inner ear processes environmentally relevant sounds and how disruptions in this processing can be identified and diagnosed. Thus, in our lab we aim to advance this knowledge by studying how the cochlea of the inner ear processes both simple and environmentally relevant sounds. We utilize approaches that combine both direct (e.g., intracochlear vibrometry) and indirect (e.g., otoacoustic emissions, electrophysiology) measurements of cochlear responses with theoretical modeling. Joint intracochlear and otoacoustic emission/electrophysiological studies informed by theoretical models are crucial for improving the power of diagnostics in humans, where the cochlea cannot be accessed for a direct study.
Cortes, Constanza
Assistant Professor of Gerontology
We investigate the mechanisms of exercise-associated neuroprotection in the context of aging and Alzheimer's disease. We utilize transgenic exercice-mimetic transgenic mice in combination with running interventions to isolate and prioritize novel 'exerkines' to move into pre-clinical trials. We are also building an 'exercise atlas' of the brain across the lifespan, with the ultimate goal of developing exercise in a pill as a novel intervention for Alzheimer's disease
Dias, Brian George
Associate Professor of Developmental Neuroscience & Neurogenetics
Our research seeks to understand not only how mammalian neurobiology, physiology and reproductive biology is impacted by psychosocial and nutritional stress but also how parental legacies of such stressors influence offspring. To achieve this understanding, we employ a lifespan approach to study how stressors affect: sperm/egg/embryo (pre-conceptional stress), the gestating fetus (in utero stress), and the developing infant (post-natal stress). Our experimental approaches include assaying learning-memory-motivation, virus-mediated manipulation of neuronal activity and gene expression, (epi)genetic profiling of cells, in vivo fiber photometry and induced pluripotent stem cells (iPSCs).
Eagleson, Kathie
Associate Professor of Research Pediatrics and Neurology
Research projects investigate the development of brain architecture that controls social-emotional behavior and learning, and how early life experiences impact neurodevelopment. Genetic and environmental factors that regulate circuit and synapse formation are studied at the molecular and circuit level, using single cell and bulk RNA sequencing, viral circuit tracing, and multiplex in-situ hybridization. Preclinical mouse models use exposure to early adverse experiences to study age- and sex- specific mitochondrial adaptations that impact the emergence of cognitive, social and emotional behaviors across the lifespan.
Gnedeva, Ksenia
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.
