School of Medicine
Showing 9,001-9,050 of 12,905 Results
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Elisabetta Viani Puglisi
Associate Professor (Research) of Structural Biology
Current Research and Scholarly InterestsViral infections and subsequent host response depend on multiple RNA-protein interaction. My research focuses on the structural and functional characterization of RNA-protein complexes involved in viral infection. Current research aims to understand how the Human Immunodeficiency Virus (HIV) initiates its replication upon host infection. We use NMR spectroscopy and x-ray crystallography to study the structure of the initiation complex, formed by a host tRNA and HIV genomic RNA, coupled with biochemical and biophysical methods to understand functional properties. The goal of this research is to gain a molecular view of HIV replication initiation, and use this information to develop new therapeutic approaches to combat HIV.
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Joseph (Jody) Puglisi
Jauch Professor and Professor of Structural Biology
Current Research and Scholarly InterestsThe Puglisi group investigates the role of RNA in cellular processes and disease. We investigate dynamics using single-molecule approaches. Our goal is a unified picture of structure, dynamics and function. We are currently focused on the mechanism and regulation of translation, and the role of RNA in viral infections. A long-term goal is to target processes involving RNA with novel therapeutic strategies.
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Rishita Pujari
Basic Life Research Scientist, Ophthalmology Research/Clinical Trials
Current Role at StanfordClinical Research Team Lead
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Jessica Pullen
MD Student with Scholarly Concentration in Biomedical Ethics & Medical Humanities
BioWhile on leave please contact at jessicagpullen@gmail.com or 253-228-8752
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Benjamin Pulli, MD
Clinical Assistant Professor (By courtesy), Neurosurgery
BioDr. Pulli is a dual fellowship trained diagnostic and interventional neuroradiologist with a focus on vascular disorders of the brain, head, neck, and spine. He is a clinical assistant professor in the Department of Radiology, Neuroradiology Division.
Having grown up in Austria, Dr. Pulli moved to the US after completing medical school in Innsbruck, Austria. He completed post-doctoral research training in stroke imaging in the Division of Neuroradiology at the Massachusetts General Hospital, as well as in experimental molecular imaging techniques of neuroinflammatory disorders at the Center for Systems Biology of Massachusetts General Hospital and Harvard Medical School.
He completed residency training in Radiology and fellowship training in Diagnostic Neuroradiology at the Massachusetts General Hospital in Boston. He then completed a second fellowship in interventional neuroradiology/neurointerventional surgery at Stanford University School of Medicine.
After having graduated from fellowship, Dr. Pulli then spent more than a year practicing Interventional Neuroradiology at Pacific Neuroscience Institute in Los Angeles. He employs state-of-the-art minimally invasive endovascular and percutaneous surgical techniques to treat patients with brain aneurysms, arteriovenous malformations, dural arteriovenous fistulas, carotid artery stenosis, acute stroke, chronic subdural hematoma, idiopathic intracranial hypertension, vascular tumors, and chronic back pain.
His research focuses on advanced imaging techniques for acute ischemic stroke and other neurovascular diseases. He has authored more than 40 peer-reviewed publications and received scientific grants from institutions such as the Radiological Society of North America and the Ernst Schering Foundation. In addition, he has made invited presentations to his peers at meetings of organizations such as the American Society of Neuroradiology, Radiological Society of North American, European Congress of Radiology, and Western Neuroradiological Society.
He is a member of the Society of Neurointerventional Surgery. -
Stephanie Pun, MD
Clinical Associate Professor, Orthopaedic Surgery
Current Research and Scholarly InterestsDr. Pun specializes in the treatment of complex hip disorders with surgical hip preservation options for children, adolescents, and adults. Her goal is to enhance hip function in active individuals and to prevent the early development of hip osteoarthritis.
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Krishna Pundi
Clinical Instructor, Medicine - Cardiovascular Medicine
BioKrishna Pundi, MD is a cardiac electrophysiologist and health services and outcomes researcher with a clinical interest in the management of ventricular arrhythmias and atrial fibrillation.
Dr. Pundi leads a multidisciplinary research program to study (1) clinical and arrhythmia-specific factors that predict cardiovascular risk for ventricular arrhythmias, (2) the interplay of frailty and obesity with atrial fibrillation outcomes, and (3) the role of digital health and wearables in arrhythmia care. He has led grant-funded research through the NIH, FDA, and ACC and collaborations with large device and quality databases including AHA’s Get With the Guidelines. He has a special interest in innovation and regulatory science, having organized national Think Tanks of patients, investigators, and FDA to define the scientific and clinical use of wearable monitors. Dr. Pundi holds leadership roles through the American College of Cardiology, Heart Rhythm Society, Cardiovascular Sciences Research Consortium, and HRX - an innovation-focused meeting of clinicians, researcher, and industry. -
Patrick Lee Purdon
Professor of Anesthesiology, Perioperative and Pain Medicine (Department Research) and, by courtesy, of Bioengineering
BioMy research integrates neuroimaging, biomedical signal processing, and the systems neuroscience of general anesthesia and sedation.
My group conducts human studies of anesthesia-induced unconsciousness, using a variety of techniques including multimodal neuroimaging, high-density EEG, and invasive neurophysiological recordings used to diagnose medically refractory epilepsy. We also develop novel methods in neuroimaging and biomedical signal processing to support these studies, as well as methods for monitoring level of consciousness under general anesthesia using EEG. -
Tiffany A. Purvis, PA-C, MS
Clinical Instructor (Affiliated), School of Medicine - Senior Associate Dean for Medical Student Education
BioTiffany A. Purvis, PA-C, MS is an Advanced Practice Provider at the Stanford Express Care Clinics, in both the San Jose and Palo Alto locations. Express Care is an arm of the Primary Care Department at Stanford that provides same-day, scheduled visits. She graduated from Northeastern University in Boston, MA with her Master of Physician Assistant Studies in 2001 and is NCCPA Certified. Since 2002 she has worked primarily in Emergency Medicine. She joined the Stanford Express Care team in 2019. In addition to patient care, Tiffany enjoys precepting PA students.
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Renee P Pyle, Ph.D.
Adjunct Clinical Assistant Professor, Psychiatry and Behavioral Sciences - Child & Adolescent Psychiatry and Child Development
BioDr. Pyle is a child psychologist who has worked in clinic, hospital, school, and private practice settings for over 20 years. She is also an Adjunct Clinical Assistant Professor in the Stanford University Department of Psychiatry and Behavioral Sciences where she supervises and teaches the child and adolescent psychiatry fellows. She received her B.A. in Human Biology from Stanford University and her Ph.D. from the University of California, Santa Barbara.
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Abdullah Qatu, MD
Clinical Assistant Professor, Anesthesiology, Perioperative and Pain Medicine
BioDr. Qatu is a board-certified, fellowship-trained pain management specialist at the Stanford Health Care Pain Management Center. He is also a clinical instructor in the Department of Anesthesiology, Perioperative and Pain Medicine, Division of Pain Medicine, at Stanford University School of Medicine.
He specializes in the diagnosis and management of many different types of pain, including nerve pain, joint pain, cancer pain, low back and neck pain. Dr. Qatu obtained his medical degree from the New York University (NYU) Grossman School of Medicine. He continued on at NYU to complete his residency in anesthesiology after completing an internship in general surgery. He subsequently completed his pain medicine fellowship at Stanford University School of Medicine.
Dr. Qatu believes in utilizing a multimodal approach for pain management. This includes interventional, pharmacological, rehabilitative and psychological strategies. He is well-trained in a wide variety of interventional modalities that include injections, epidurals, nerve blocks, radiofrequency ablations, peripheral nerve stimulation, spinal cord/dorsal root ganglion stimulation and minimally invasive decompression. His research focuses on the clinical use of neuromodulation for various types of pain. In addition, he has investigated whether certain demographic and socioeconomic variables, as well as psychiatric illness, affect the outcomes of various orthopaedic traumas and surgeries. Dr. Qatu has presented his research at conferences throughout the U.S. and in Canada. -
Lei (Stanley) Qi
Associate Professor of Bioengineering
BioDr. Lei (Stanley) Qi (publishes as Lei S. Qi) is an Associate Professor in the Department of Bioengineering at Stanford University, an Institute Scholar at Sarafan ChEM-H, and a Chan Zuckerberg Biohub Investigator. Trained in physics and mathematics (Tsinghua University) and bioengineering (UC Berkeley), he was a Systems Biology Fellow at UCSF before joining the Stanford faculty in 2014.
Qi is a pioneer in CRISPR technology and genome engineering. His lab created the first nuclease-deactivated Cas9 (dCas9) for targeted gene regulation, establishing CRISPR interference (CRISPRi) and CRISPR activation (CRISPRa). Since then, his group has expanded CRISPR from an editing tool into a platform for programmable control of dynamic and spatial cell state, integrating scalable perturbation, live-cell and super-resolution imaging, and computation-guided design. This work has produced technologies for multiplexed transcriptome regulation, programmable 3D genome organization, spatial RNA logistics control, and real-time visualization of chromatin and transcriptional events in living cells.
A distinctive focus of the Qi lab is closed-loop biology, combining perturbation with high-content measurements to infer mechanisms and iteratively refine control strategies. The lab develops platforms spanning multiplexed transcriptional and epigenetic control, spatial genome–transcriptome organization, and quantitative live-cell imaging of chromatin and transcriptional dynamics. A compact nuclease-dead CRISPR epigenetic editor from this technology lineage has advanced to first-in-human clinical testing for facioscapulohumeral muscular dystrophy (FSHD; NCT06907875), underscoring the translational potential of principle-driven control systems.
Beyond single-cell control, Qi’s lab is building a framework for synthetic cell–cell communication, with particular emphasis on the bidirectional interplay between immune cells and neurons. The lab’s goal is to move beyond describing molecular parts to discovering fundamental control principles in living systems: how regulatory landscapes create stable states and memory, how spatial genome–RNA organization shapes dynamic responses, and how engineered cell–cell interactions can generate emergent multicellular behaviors. By integrating experimental bioengineering with computation and machine learning, the lab aims to identify generalizable rules linking molecular programs to systems-level physiology and disease trajectories and to translate those rules into next-generation therapeutic cells. -
Xiang Qian
Stanford Medicine Endowed Director
Clinical Professor, Anesthesiology, Perioperative and Pain Medicine
Clinical Professor (By courtesy), NeurosurgeryCurrent Research and Scholarly InterestsClinical Interests
-Pain Medicine:
Facial pain
Migraine and headache
Trigeminal Neuralgia and Glossopharyngeal neuralgia
Cancer Pain
Spine Disease
Neuropathic pain
Interventional Surgery
CT guided Procedure
Opioid Management
-Facial Nerve neuralgia and neuropathy
Hemifacial Spasm
CT guided awake RFA of facial nerve
Research Interests:
-Medical device development
-AI based headache diagnosis and management
-CT guided intervention
-Intra-nasal endoscopy guided procedure
-Optogenetics
-Mechanisms of neuropathic pain
-Ion channel and diseases
-Neurotoxicity of anesthetics -
Yushen Qian, MD
Clinical Associate Professor, Radiation Oncology - Radiation Therapy
BioDr. Qian is a board-certified radiation oncologist and a Clinical Associate Professor in the Stanford University School of Medicine, Department of Radiation Oncology.
In his clinical practice, he sub-specializes in genitourinary (including prostate and bladder cancer) and Head and Neck malignancies, but also treats a broad spectrum of other disease subsites including lung/thoracic, gastrointestinal, brain, lymphoma, and breast tumors. For each patient, he develops a comprehensive, individualized, and compassionate care plan customized to individual needs. His goal is to deliver the most effective cancer treatment to help patients enjoy the best possible health and quality of life.
In addition to his clinical practice, Dr. Qian serves as the Medical Director of Radiation Oncology at Stanford South Bay Cancer Center. He also serves as the Radiation Oncology Network Director of Clinical Research and has spearheaded opening of multiple NRG Oncology clinical trials at Stanford South Bay Cancer Center.
Dr. Qian is also actively involved in the Stanford Radiation Oncology residency program. He created and oversees a monthly mentorship roundtable series to assist residents with multiple aspects of their clinical training and career progression.
Outside of work, Dr. Qian enjoys spending time with his family and exploring the great outdoors of Northern California.
