School of Medicine
Showing 1-20 of 528 Results
-
Raya Saab
Lindhard Family Professor of Pediatric Cancer Biology
BioOur laboratory focuses on investigating molecular mechanisms of oncogene-induced tumorigenesis and tumor suppressor pathways, and oncogenic signaling in the pediatric solid tumor rhabdomyosarcoma. Our earlier work identified the tumor suppressors p53 and p18Ink4c as inhibitors of Cyclin D1-driven tumorigenesis in a pineoblastoma model, through senescence induction, and highlighted distinct roles for the the RB and p53 pathways in induction and maintenance of oncogene-induced senescence. We also identified CDK2 as a potential target for inducing senescence in premalignant lesions to inhibit tumor progression.
Our current focus is on studying oncogenic signaling and tumor suppression in the childhood tumor rhabdomyosarcoma, to identify key mediators of invasion and metastasis, which is the most common cause of treatment failure clinically. We use preclinical in vitro and in vivo models, including murine and human cell lines, and mouse models of disease.
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. -
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.
-
Zahra Sadat-Hossieny, MD
Clinical Assistant Professor, Adult Neurology
BioZahra Sadat-Hossieny, MD, is a board-certified neurologist who completed her fellowship in clinical epilepsy at Stanford University Hospitals and Clinics. She finished her residency in neurology at the Ohio State University Wexner Medical Center. She obtained her medical degree and a certificate in global health from the George Washington University School of Medicine and Health Sciences.
She has extensive experience treating patients with epilepsy and currently provides care through the Comprehensive Epilepsy and Comprehensive Neurology Programs at Stanford Health Care. In addition to her clinical responsibilities, Dr. Sadat-Hossieny also teaches future generations of clinicians as an assistant professor at Stanford School of Medicine in the Department of Neurology, Epilepsy, and Comprehensive Neurology.
Dr. Sadat-Hossieny has authored several peer-reviewed journal articles and book chapters. She has presented her research orally and through posters at various conferences. During her fellowship at Stanford University Hospitals and Clinics, she used advanced diagnostic techniques including video-EEG monitoring, computerized brainwave mapping, diagnostic imaging, neuropsychiatric testing, and functional mapping to accurately diagnose epilepsy and conditions imitating epilepsy. She also gained expertise in the most advanced forms of epilepsy treatment including neuromodulation, epilepsy surgery and medications specific to epilepsy. Her research focused on the cognitive effects of anti-seizure medications on patients with epilepsy and their children. She has also published on the importance of nutrient supplementation on cognition in patients taking anti-seizure medications. Her collaborations include projects that assess and improve patients’ understanding of their own seizure types. -
Rebecca Saenz
Clinical Assistant Professor, Pediatrics - Immunology and Allergy
Current Research and Scholarly InterestsAllergy, Immunology, Bioengineering and Biodesign
-
Samuel Ricardo Saenz
Clinical Assistant Professor, Psychiatry and Behavioral Sciences
BioDr. Sam Saenz was born in the Bay Area and received his bachelor’s degree in psychology from Stanford University. He completed his medical degree at UC Irvine’s Program in Medical Education for the Latino Community, and he also obtained a Master’s in Public Health from UC Berkeley. After serving as chief psychiatry resident during his psychiatry residency at Stanford, he completed a fellowship in public psychiatry at UC San Francisco. His professional interests include fostering the next generation of diverse mental health providers and community advocacy.
-
Debra Safer
Professor of Psychiatry and Behavioral Sciences (General Psychiatry and Psychology-Adult)
Current Research and Scholarly InterestsPrimary research interests include the nature and treatment of eating disorders
(particularly bulimia nervosa and binge eating disorder), the development and treatment of obesity, and the development and treatment of problematic eating patterns in patients following bariatric surgery. -
Marc R. Safran, MD
Professor of Orthopaedic Surgery
Current Research and Scholarly InterestsDr. Safrans practice focuses on arthroscopic management of hip problems as well as articular cartilage regeneration, shoulder surgery and athletic shoulder and elbow problems. He is actively involved in research in these areas.
-
Julien Sage
Elaine and John Chambers Professor of Pediatric Cancer and Professor of Genetics
Current Research and Scholarly InterestsWe investigate the mechanisms by which normal cells become tumor cells, and we combine genetics, genomics, and proteomics approaches to investigate the differences between the proliferative response in response to injury and the hyperproliferative phenotype of cancer cells and to identify novel therapeutic targets in cancer cells.
-
Manish Saggar
Associate Professor (Research) of Psychiatry and Behavioral Sciences (Interdisciplinary Brain Science Research)
Current Research and Scholarly InterestsWe are a computational neuropsychiatry lab dedicated to developing computational methods to better understand brain’s overall dynamical organization in healthy and patient populations. We employ algorithms from a wide range of fields, including Applied Mathematics, Econometrics, Machine Learning, Biophysics, and Network Science.
-
Kristin Sainani (n e Cobb)
Professor (Teaching) of Epidemiology and Population Health
On Leave from 01/01/2025 To 06/15/2025Current Research and Scholarly InterestsScience writing, science communication, biostatistics. Research areas: osteoporosis, stress fractures, sports injuries, female athlete triad.
-
Debbie C. Sakaguchi Sakai
Clinical Professor, Pediatrics
Current Research and Scholarly InterestsMedical education, shared decision making, resuscitation.
-
Kathleen M. Sakamoto
Shelagh Galligan Professor in the School of Medicine
Current Research and Scholarly InterestsMy research focuses on the molecular pathways that regulate normal and aberrant blood cell development, including acute leukemia and bone marrow failure syndromes. We are also studying novel drugs for treatment of cancer.
-
Sarada Sakamuri, MD
Clinical Associate Professor, Adult Neurology
Clinical Associate Professor (By courtesy), NeurosurgeryBioDr. Sarada Sakamuri specializes in neuromuscular medicine. Her interests are peripheral nerve injury, neuromuscular ultrasound, EMG/NCS, and neurogenetic disorders. Her other passion is graduate medical education.
She graduated from Rutgers University with Phi Beta Kappa distinction and a degree in psychology. She attended Rutgers New Jersey Medical School in Newark, NJ, where she led multiple community service and medical education activities and was elected to the Alpha Omega Alpha and Gold Humanism Honor Societies. She moved to the Bay Area to pursue neurology residency at Stanford, where she later served as chief resident. She then completed two years of fellowship in EMG/Clinical Neurophysiology and Neuromuscular Medicine and research training at Forbes Norris MDA/ALS Research Center.
Dr. Sakamuri's passion is neuromuscular medicine, with a focus on peripheral nerve traumas and disorders. She is Co-Director of the Center for Peripheral Nerve Surgery along with neurosurgeon Dr. Thomas J. Wilson. She performs advanced evaluations of peripheral nerve conditions by integrating nerve and muscle ultrasound and neurophysiologic testing (EMG/NCS) at the bedside. She has advanced training in nerve and muscle ultrasound, and sits on the Neuromuscular Ultrasound Committee of the American Association of Neuromuscular and Electrodiagnostic Medicine (AANEM).
She is board-certified in Neurology and in Neuromuscular disorders by the American Board of Psychiatry and Neurology (ABPN). She is certified in EMG/NCS by the American Board of Electrodiagnostic Medicine (ABEM), and holds a Certificate of Added Qualification in Neuromuscular Ultrasound.
Dr. Sakamuri's other passion is graduate medical education. She is the Program Director of the Stanford Neuromuscular Medicine Fellowship and Associate Director of the Clinical Neurophysiology/EMG Fellowship, with a total of five ACGME-accredited positions filled by extremely bright and talented fellows. She supervises a weekly neurology resident continuity clinic and enjoys teaching medical students and neurology and physiatry residents and fellows. She been awarded the Lysia S. Forno Award for outstanding contributions to resident teaching. -
Khalid Salaheldin, MD
Clinical Assistant Professor, Psychiatry and Behavioral Sciences
BioKhalid Salaheldin, MD, holds the position of Clinical Assistant Professor and serves as an interventional psychiatrist within the Department of Psychiatry & Behavioral Sciences at Stanford University School of Medicine. His expertise lies in the specialized care of individuals who present with early psychosis.
At Stanford, Dr. Salaheldin's current responsibilities encompass a range of clinical activities, including evaluating patients with early psychosis at the INSPIRE clinic, providing care in the inpatient psychiatric unit, and delivering interventional psychiatry services. In addition to his clinical work, he is actively engaged in teaching, conducting research, and fostering collaborative learning among his patients and colleagues.
His treatment philosophy is a recovery oriented and compassionate approach evaluating vital underlying factors alongside pharmacotherapy & neuromodulatory interventions including: sleep, exercise, nutrition, mindfulness, therapy integration, underlying medical issues, substance use, psychosocial history, and importantly patients’ current relationships (including pets of course!). His approach focuses on meeting patients where they are at in their health journey, aligning treatment with their personal goals, and being actively present in their management.
Dr. Salaheldin’s research interests include early psychosis interventions, underlying medical causes of psychiatric symptoms, neuromodulation, community/global mental health, spirituality and mental health, healthcare worker mental health, novel psychiatric therapeutics, and mental health parity & policy.
Before joining Stanford, Dr. Salaheldin served as the academic chief resident at Northwell Health, where his focus centered on designing a consult liaison service for patients experiencing a first episode of psychosis. This pioneering initiative aimed to provide compassionate support to patients and their families from the moment they arrived at the emergency room, throughout their inpatient stay, and during their transition to the outpatient setting. He hopes to continue this work on a local and global scale.
“True compassion means not only feeling another's pain, but also being moved to help relieve it. ” —Daniel Goleman
