School of Medicine


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  • Tracey Woodruff

    Tracey Woodruff

    Professor of Epidemiology and Population Health and Senior Fellow at the Woods Institute for the Environment

    BioMy research is devoted to identify and addressing environmental pollution exposures - petrochemicals, pesticides, plastics and other toxic contaminants - and the impacts on health. I focus on filling critical gaps in knowledge that will result in structural changes that improve health and reduce inequities. I collaborate across disciplines to create systemic solutions that integrate environmental health, public policy, and healthcare for significant public health advancements. My research expertise encompasses all aspects of understanding and characterizing environmental chemical exposures and their health impacts, especially on vulnerable and susceptible populations due to life stage, such as pregnant women and children, and demographics, such as poverty and race/ethnicity. I led multidisciplinary investigations to: identify and measure human exposures to environmental contaminants via modeling and biomonitoring including advanced methods for nontargeted analysis; identify biological mechanisms using in vitro and in vivo systems; assess the impact of multiple chemical exposures on pregnancy and child outcomes via epidemiology studies; and develop and apply methods for translating research findings into improved clinical care and public policy.

    I have extensive expertise and experience in translating science into clinical and policy decision-making. I led the development of the Navigation Guide Systematic Review Methodology, the first systematic review method for environmental health science, developed in collaboration with multiple collaborators from international, national, and state governments, community groups, and the clinical community, integrates best practices from clinical medicine and environmental health evaluation. I continue to collaborate on systematic reviews including pesticides and Parkinson’s, and methodological improvements. I am widely recognized for my expertise in the use of science in decision making for environmental chemicals. I’ve been invited to testify before Congress and the State of California multiple times and I lead our Science Action Network that engages in bring best available science to regulatory decision-making. I have also collaborated with other faculty on empirical research to identify how industries adversely influence the scientific process.

    Before Stanford, I was a Professor at UCSF and Director of the Program on Reproductive Health and the Environment. I now with UCSF co-lead the UCSF/Stanford Environmental Research and Translation for Health Center funded by a NIEHS P30 mechanism. Prior to UCSF I served for over 10 years in the Office of Policy at the US Environmental Protection Agency.

  • Emily Woods

    Emily Woods

    Postdoctoral Scholar, Pathology

    Current Research and Scholarly Interestsdevelopment of activity-based probes for specific diagnosis and treatment of Staphylococcus aureus infections and for detection of bacterial ear infections (otitis media)

  • Mulate Zerihun Workeneh

    Mulate Zerihun Workeneh

    Postdoctoral Scholar, Critical Care

    BioDr. Mulate Zerihun Workeneh is a Postdoctoral Scholar in Dr. Bereketeab Haileselassie’s laboratory in the Department of Pediatrics at Stanford University School of Medicine. He earned a Ph.D. in Medical Sciences from the Azrieli Faculty of Medicine at Bar-Ilan University, Israel, where he developed peptide therapeutics that target mitochondrial protein-protein interactions involved in cardiovascular disease. Dr. Workeneh’s research uses medicinal chemistry, chemical biology, peptide engineering, computational modeling and mitochondrial biology to understand how the disease occurs and to develop new ways to treat it. During his doctoral training, he designed and evaluated novel linear and macrocyclic peptide inhibitors that alter mitochondrial dynamics to mitigate mitochondrial dysfunction and cardiovascular injury. His work at Stanford is focused on defining the role of mitochondrial dynamics in endothelial dysfunction in sepsis and multiple organ dysfunction syndrome (MODS). He is working to develop peptide-based therapeutics that maintain mitochondrial function, improve vascular health and prevent organ failure in critically ill patients by integrating approaches in chemical biology, molecular and cellular biology, and translational drug discovery. Dr. Workeneh has publications in leading medicinal chemistry, pharmacology, and mitochondrial biology journals and is an inventor on patents related to mitochondrial protein-protein interaction inhibitors. His goal is to translate advances in mitochondrial biology into first-in-class therapeutics for cardiovascular disease, sepsis, and other disorders linked to mitochondrial dysfunction. He is excited to work across disciplines at Stanford to help push biomedical research forward.

  • Michael Wornow

    Michael Wornow

    Affiliate, Computational Medicine

    BioMichael is a computer science PhD student focused on developing and operationalizing large-scale pretrained models ("foundation models") in healthcare. He is advised by Nigam Shah and Chris Re and is supported by an NSF Graduate Research Fellowship.

  • Britt Wray

    Britt Wray

    Instructor, Psychiatry and Behavioral Sciences

    BioDr. Wray is the Director of CIRCLE at Stanford Psychiatry, a research and action initiative focused on Community-minded Interventions for Resilience, Climate Leadership and Emotional wellbeing in the Stanford School of Medicine. Her research focuses on the mental health impacts of climate change on young people ('emerging adults') and frontline community members, community-minded psychosocial support interventions, and public engagement for improved mental and planetary health. Wray focuses on co-designing and evaluating evidence-based climate distress (climate anxiety/eco-anxiety) interventions with impacted communities and international networks of Integrated Youth Services using a health equity lens, and brings expertise in conceptual models of climate distress, different measurement modalities for climate impact exposures on mental health, community-engaged research, and co-design methods. Previously, Wray was a Human and Planetary Health Postdoctoral Fellow at the Stanford Center for Innovation in Global Health, Stanford Woods Institute for the Environment and London School of Hygiene & Tropical Medicine. She is the author of two books; her latest Generation Dread: Finding Purpose in an Age of Climate Anxiety, is an impassioned generational perspective on how to stay sane amid climate disruption and was a finalist for the 2022 Governor General’s Award. She is the recipient of the 2025 American Climate Leadership Awards (Runner Up), 2023 Canadian Eco-Hero Award and top award winner of the National Academies Eric and Wendy Schmidt Awards for Excellence in Science Communications, given by The National Academies of Sciences, Engineering, and Medicine. Her first book is Rise of the Necrofauna: The Science, Ethics and Risks of De-Extinction (Greystone Books 2017) and was named a "best book of the year" by The New Yorker. Dr Wray holds a PhD in Science Communication from the University of Copenhagen. She has hosted and produced several science radio programs, podcasts and television programs for international broadcasters including the BBC and CBC, and she has spoken at TED and the World Economic Forum. She is the Founder of Unthinkable (unthinkable.substack.com), a newsletter about building courage and taking meaningful action on the far side of climate grief.

  • Sherry M. Wren, MD, FACS, FCS(ECSA), FISS

    Sherry M. Wren, MD, FACS, FCS(ECSA), FISS

    Professor of Surgery (General Surgery)

    Current Research and Scholarly InterestsOur research interests are primarily in global surgery,robotics,surgical oncology, especially gastrointestinal cancers.