
University of Colorado
School of Medicine
​
Children's Hospital Colorado

Our Team

Danielle Guez-Barber, MD, PhD
Principle Investigator
Danielle Guez Barber, MD PhD is an Assistant Professor in Child Neurology at the University of Colorado and Children’s Hospital Colorado. Danielle graduated from the Massachusetts Institute of Technology in 2003 with a BS in Brain and Cognitive Sciences, where she worked for 2.5 years in Dick Wurtman’s lab. She earned her MD PhD from Yale Medical School cum laude in 2012. Through the Graduate Partnerships Program, she did her PhD lab work at the National Institute on Drug Abuse under Dr. Bruce Hope, partnering with Dr. Marina Picciotto’s lab at Yale. In her doctoral work, she developed the use of Fluorescence Activated Cell Sorting for adult rat brains, and isolated the neuronal ensemble that encoded a drug-relevant learned behavior. Danielle trained in Pediatrics and Child Neurology at the Children’s Hospital of Philadelphia, then completed post-doctoral training in the lab of Dr. Amelia Eisch at CHOP/Penn. Danielle moved to Colorado in 2024 to launch her laboratory. Her research and clinical work focus on perinatal hypoxic-ischemic encephalopathy (HIE), which can lead to cerebral palsy, epilepsy, and other sequelae. Her lab focuses on sex differences in the brain immune response to hypoxia-ischemia. She is leading the building of an HIE clinical and community registry, with a synergistic partnership between Hope for HIE and the Cerebral Palsy Research Network. She also serves on the Board of Directors and Medical Advisory Board of Hope for HIE. Danielle, her husband and their 3 kids love skiing, traveling, and live music.

Carter Joyce
Research Technician
I am a technician in Dr. Barber’s lab, originally from Haverford, Pennsylvania. I graduated from Middlebury College in 2024, with a B.S. in Neuroscience and Psychology, where I worked for 3 years in Dr. Clarissa Parker's neuroscience lab. I have always been curious about how the human body works, but the brain fascinates me the most with its diversity and adaptability. I am particularly interested in the plasticity of the brain and its ability to compensate for damage or malformations by reorganizing neural pathways. The brain's innate immune response plays an integral role in this reorganization, which has significantly peaked my curiosity in microglia research. I am grateful to have the opportunity to learn more about the developmental brain, considering I was a 3-month pre-mature baby myself, and hope I can play a role in the development of therapeutics for newborns with HIE. For fun, I like to play racket sports, play the violin, and ski!

Ida Narli
Undergraduate Researcher
I am an undergraduate researcher in Dr. Danielle Barber’s Lab. I moved back and forth between East and West Coast but mainly grew up in Philadelphia. I am currently a student at Princeton, majoring in History of Science and studying neuroscience. My research interests center on the potential for learning following injury, specifically why children with neurodevelopmental disorders might experience increased plasticity. I am especially fascinated by the molecular underpinnings of microglial dysfunction. I really enjoy the troubleshooting and problem-solving involved in techniques like tissue staining, behavioral assays, and computational modeling. Outside the lab, I love teaching ceramics, rock climbing outdoors, and exploring libraries and book stores in new cities!

Kassandra Pulido
Graduate Researcher
I was a medical student researcher (SUMMR Program) when I worked for Danielle. I am from Lake Jackson, Texas and went to Texas A&M University for my undergraduate studies, where I a Bachelor of Science in Biomedical Science. I am currently in medical school at The University of Texas Rio Grande Valley (UTRGV). What fascinates me about neuroscience research is the opportunity to deepen my understanding of the human brain’s complexity and its ability to adapt to injury or disease. Specifically, Danielle’s research on HIE interests me as I have come to recognize the prevalence of HIE and the impact it can have, highlighting the need to understand the mechanisms behind brain injury in order to transform medical treatments and improve patient outcomes. Additionally, this work is personally meaningful to me as neurological disorders have affected people close to me, motivating my desire to contribute to advancing care in this field. In my free time I enjoy spending time with friends/family, staying active/working out, and being outdoors!

Kaya Johnson
Undergraduate Researcher
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Lab Alumni

Research Technician
Sofia Nicolayevsky
I was a research technician for Dr. Barber, originally from Mexico City. I went to Haverford College for undergrad, where I earned a B.S. in Psychology and Biology. I am fascinated by how the variations in the macrophage response across sex can be leveraged to better understand the mechanisms of HIE and inform future treatment. For fun, I like to travel, discover new foods and restaurants, and cook.

Graduate Student Researcher
Sarah Doebley
Hello! My name is Sarah Doebley and I was a Medical Student Researcher in Dr. Barber's lab from Spring of 2022 through Spring of 2023. I am from the Lower Merion suburbs of Philadelphia, just 20 minutes away. I attended The College of William and Mary and graduated with my Bachelor of Science in Neuroscience in 2020. I currently attend Lewis Katz School of Medicine at Temple University, and I will be graduating in May 2025! I will then be starting residency in Pediatrics. My passion for neuroscience research is deep-rooted because I enjoy learning about how the brain develops and the complex nature of how genetics and the environment interact to shape each individual. In my free time, I enjoy running, hiking with my German Shepard, snowboarding, and watching Philadelphia sports (go birds!).

Graduate Researcher
Ilona Golynker
I was a Neuroscience PhD rotation student in the summer of 2023 at the University of Pennsylvania, when I worked in Danielle's lab. I am originally from Israel and went to Georgia State University for undergrad, where I graduated with a B.S. in Neuroscience. I’m most fascinated by neuroimmune crosstalk during injury and repair. The brain’s immune system doesn’t act in isolation—it both influences and is influenced by the body’s systemic response. This challenges the myth of the brain as completely isolated, highlighting the dynamic interactions that shape recovery and potential interventions.
For fun, I like to play tennis, try out new restaurants, and roam around antique stores :)

Undergraduate Researcher
Delia Russo
I’m from Marlboro, New Jersey, and I went to school at the University of Pennsylvania where I studied neuroscience. At Penn, I was an undergraduate researcher in Danielle’s lab. What I loved the most about partaking in research in Danielle’s lab was being able to be part of a team investigating a mouse model for HI that could possibly inform future therapeutic options for children with HIE. For fun, I love to read nonfiction, crochet clothing, and run outdoors!

Undergraduate Researcher
Sheyenne Gillis
I was an undergraduate researcher with Danielle. I am originally from Oakdale, CT. I went to the University of Pennsylvania and graduated with a Bachelor’s in Nursing (BSN). I was always fascinated by the brain and neuroscience, and Danielle’s research looking into sex differences with HIE was especially interesting to me. Creating mice models and being able to directly see the changes made in the brains of these mice was an amazing experience. There was always something to learn or improve upon everyday and I loved that! When I’m not working, I enjoy long walks around Philly with a strong cup of coffee in hand.

Undergraduate Researcher
Kira Lu
I was an undergraduate researcher in Danielle's lab, from New Jersey. I went to the University of Pennsylvania for undergrad, earning a BS in Bioengineering. During my studies at Upenn,
I assisted Danielle in her research lab and learned so much about the progression of neurological diseases. For fun, I love to run and figure skate!

Undergraduate Researcher
Dana Raphael
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Undergraduate Researcher
Terhi Nurminen
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Undergraduate Researcher
Max Wragen
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Undergraduate Researcher
Avi Sura
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Undergraduate Researcher
Haley Phillips
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Medical Student Researcher
Ritvik Kumaran
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