School of Medicine


Showing 9,721-9,740 of 12,991 Results

  • maura ruzhnikov

    maura ruzhnikov

    Member, Maternal & Child Health Research Institute (MCHRI)

    BioChild neurologist and medical geneticist focusing on the diagnosis and management of rare neurologic disorders. Specific interests are in genetic epilepsy syndromes, childhood neurodegenerative and neurometabolic diseases and undiagnosed suspected genetic conditions.

  • Charles William Ryan

    Charles William Ryan

    Affiliate, Department Funds
    Resident in Surgery

    BioI was born and raised in Syracuse, New York. I first attended Onondaga Community College, where I developed a fascination with the development of complex biological systems, and then transferred to Syracuse University where I completed my B.S. in biochemistry. I next attended the University of Michigan MD/PhD program, where I used in-vitro models of human neurodevelopment to study to role of epigenetic marks in guiding neurogenesis. While at Michigan, I became interested in the prospect of harnessing in-vitro differentiation to cultivate functional tissues that can be transplanted to replace what is lost in degenerative conditions. Ophthalmology, with its microsurgical access to functionally critical cell layers, is well-positioned to capitalize on this emerging field of science to treat degenerative conditions. I am humbled and incredibly thankful to have the opportunity to pursue this aim as a SOAR resident at Stanford.

  • Katherine Jane Ryan

    Katherine Jane Ryan

    Clinical Assistant Professor, Pediatrics - Hematology & Oncology
    Clinical Assistant Professor (By courtesy), Adult Neurology

    Current Research and Scholarly InterestsDr. Katherine “Katie” Ryan is a pediatric neuro-oncologist whose research focuses on developing and translating cellular immunotherapies for children with malignant brain tumors. She leads the first-in-human trial of GPC2-directed CAR T cells for CNS Embryonal Tumors. As a member of Stanford Children’s world-renowned pediatric brain tumor team, she diagnoses and treats children with CNS tumors while advancing innovative trial design, intracerebroventricular delivery, and correlative science.

  • Tracy Rydel

    Tracy Rydel

    Clinical Professor, Medicine - Primary Care and Population Health

    BioTracy Rydel is Clinical Professor of Medicine at Stanford University School of Medicine where she holds the positions of Assistant Dean for Clerkship Education and Director, Core Clerkship in Family and Community Medicine. She has also served as the Director of Medical Student Education in the Division of Primary Care and Population Health, and was an Educator-4-CARE faculty from 2017-2020. She is a family physician with a passion for medical education. She completed the Rathmann Family Foundation Fellowship in Patient-centered Care and Medical Education in 2012, was in the first wave of peer coaches in the Peer Coaching Program under the Stanford Teaching and Mentoring Academy, and was the Director of the Practice of Medicine Year One Course at Stanford from 2013-2016. She emphasizes patient-centered care in the pursuit of clinical and educational excellence. She is frequently an invited presenter at the national conferences of the Society of Teachers of Family Medicine (STFM), and the Western Group on Educational Affairs (WGEA) regional group of the AAMC; her scholarly work focuses on medical education endeavors, including equity and justice in systems of medical education assessment. She has also presented and published on topics in nutrition education and the teaching kitchen, working with medical scribes, Entrustable Professional Activities, primary care career recruitment and mentoring, procedures training, time management in ambulatory teaching, communication skills, virtual health and telehealth, teaching gender-affirming primary care, and learning communities.

  • Raya Saab

    Raya Saab

    Lindhard Family Professor of Pediatric Cancer Biology

    BioI am a pediatric oncologist, and I primarily treat children who are diagnosed with soft tissue sarcomas including rhabdomyosarcoma, and children diagnosed with the eye tumor retinoblastoma, as well as children with other solid tumors.
    I have two very different areas of primary research interest, both of which I pursue with passion. One focuses on global oncology, including clinical and research resource capacity building towards effective treatment and improving outcomes of children with cancer worldwide. I work with collaborators across the globe towards a common goal of improving access to diagnostic and clinical care, training of multidisciplinary teams, and building clinical resources and research capacity to develop context-informed approaches to improving cancer care and achieving better outcomes for children diagnosed with cancer irrespective of where they happen to live.
    My parallel research interest, which is the focus of my laboratory, is understanding oncogenic signaling in pediatric soft tissue sarcomas, in an effort to clarify the driving biology and determinants of metastatic disease, to uncover novel targets for more effective treatment. We use preclinical in vitro and in vivo models, including murine and human cell lines, and mouse models of cancer. We have recently uncovered a paracrine role for rhabdomyosarcoma-secreted exosomes in impacting biology of stromal cells. Rhabdomyosarcoma-derived exosomes carry specific miRNA cargo that imparts an invasive and migratory phenotype on normal recipient fibroblasts, and proteomic analysis revealed specific and unique pathways relevant to the two different molecular rhabdomyosarcoma subtypes that are driven by distinct oncogenic pathways. We identified that the driver oncogene in fusion-positive rhabdomyosarcoma, PAX3-FOXO1, modulates exosome cargo to promote invasion, migration, and angiogenic properties, and identified specific microRNA and protein cargo acting as effectors of PAX3-FOXO1 exosome-mediated signaling, including modulation of oxidative stress response and cell survival signaling. Our ongoing work is focused on interrogating specific paracrine signaling pathways and molecular mechanisms of metastatic disease progression in rhabdomyosarcoma, for potential therapeutic targeting.

  • Nojus Saad

    Nojus Saad

    Masters Student in Clinical Informatics Management, admitted Summer 2026

    BioNojus Saad, MD, is a physician-entrepreneur and digital health diplomat dedicated to engineering health justice through scalable digital systems. As a Technical Advisor to the World Health Organization (WHO), he co-develops global adolescent health indicators adopted by the World Bank, UNFPA, and UN H6+ Partners. His leadership in rural and LMIC communities across Iraq, India, and France is anchored by his role as Founder of the Youth For Women Foundation, where he has spearheaded 45 youth-led initiatives directly impacting the lives of 18,500 women and young people.

    Dr. Saad’s diplomatic expertise spans health and security, serving as UN Youth Ambassador for Disarmament and Biosecurity (UNODA) and as the MENA Youth Lead for the Swiss-based DTH-Lab. Through these mandates, he has mobilized coalitions across 12 MENA countries to integrate digital innovation into national health agendas. This high-level advocacy is validated by his track record as a systems architect; in 2021, he orchestrated a digital health literacy and COVID-19 misinformation initiative for rural and displaced populations. By building the digital capacity of NGO leaders and youth, he empowered grassroots networks to execute 15 targeted awareness campaigns, reaching 10,000 women and youth to strengthen their access to reliable health services.

    Currently, Dr. Saad is scaling this success into a coordinated, all-in-one digital platform that bridges Iraq’s public and private healthcare sectors. By implementing interoperable EHRs and data-driven matching, his startup digitizes the entire referral pathway to connect Iraqi patients with the most cost-effective, high-quality care providers both domestically and abroad in the U.S. and France. This venture transforms fragmented systems into a seamless, unified framework for optimized clinical access and specialist care.

    A Knight-Hennessy Scholar and advisor to Lady Gaga’s Born This Way Foundation, Dr. Saad holds an MD with executive diplomatic training from the Karolinska Institute and Stockholm School of Economics. At Stanford MCiM, he is refining the technical and managerial frameworks necessary to lead the next generation of inclusive, tech-driven health systems in LMICs.

  • Chiara Sabatti

    Chiara Sabatti

    Professor of Biomedical Data Science and of Statistics

    Current Research and Scholarly InterestsStatistical models and reasoning are key to our understanding of the genetic basis of human traits. Modern high-throughput technology presents us with new opportunities and challenges. We develop statistical approaches for high dimensional data in the attempt of improving our understanding of the molecular basis of health related traits.