Research in the Retrovirus Laboratory focuses on the molecular virology and pathogenesis of lentivirus infections. In particular, we study the simian immunodeficiency virus (SIV) to determine the molecular basis for the development of HIV CNS, pulmonary and cardiac disease. Research projects include studies of viral molecular genetics and host cell genes and proteins involved in the pathogenesis of disease. We are also interested in studies of lentivirus replication in macrophages and astrocytes and their role in the development of disease. These studies have led us to identify the viral genes that are important in neurovirulence of SIV and the development of CNS disease including NEF and the TM portion of ENV. The mechanisms of the action of these proteins in the CNS are complex and are under investigation. We have also developed a rapid, consistent SIV/macaque model in which we can test the ability of various antiviral and neuroprotective agents to reduce the severity of CNS and pulmonary disease.

The Stephen Sisson Lab focuses on medical education, community outreach and ambulatory care. We recently demonstrated concurrent validity between performance on an ambulatory curriculum, the Internal Medicine In-Training Examination (IM-ITE) and the American Board of Internal Medicine Certifying Examination (ABIM-CE).

The Stephen Mathai Lab focuses its research on pulmonary medicine. We're particularly interested in scleroderma-associated pulmonary hypertension, pulmonary complications of connective tissue disease, idiopathic pulmonary fibrosis and pulmonary hypertension.

Dr. Sozio’s research focuses on 1) Clinical research related to chronic kidney disease and end stage renal disease, and 2) Educational research in undergraduate and graduate medical education.

The Sozio lab pursues work related to stroke, cognitive impairment, manifestations of kidney disease, and systematic reviews on clinical topics, and collaborates on multiple projects with other key investigators. In particular, Dr. Sozio has been an active investigator in the Choices for Healthy Outcomes in Caring for ESRD (CHOICE) Study, Predictors of Arrhythmic and Cardiovascular Risk in End Stage Renal Disease (PACE) Study, Chronic Renal Insufficiency Cohort (CRIC) Study, and work funded through the Agency for Healthcare Research and Quality (AHRQ) and Johns Hopkins Evidence-Based Practice Center. In addition, the Sozio lab performs studies at the UME and GME levels, investing in understanding learners’ mentorship, research, and transitional experiences.

The Sydney Dy Lab has conducted extensive research on quality of care, patient safety and decision-making, with a focus on patients with cancer and other serious and terminal diseases. Our team seeks to improve health systems and services to optimize the use of technology and medication, particularly in end-of-life health care policy. Our research approach includes primary and quantitative data collection, quality measurement improvement, systematic literature reviews and analysis of secondary database.

The Susan Tuddenham Lab studies sexually transmitted diseases, in particular ocular syphilis.

Research in the Sara Mixter Lab focuses on primary care medical education, particularly quality improvement, high-value care and care transitions for adolescents with developmental disabilities and other special health care needs.

Chronic viral hepatitis (due to HBV and HCV) is a major cause of liver disease worldwide, and an increasing cause of death in persons living with HIV/AIDS. Our laboratory studies are aimed at better defining the host-pathogen interactions in these infections, with particular focus on humoral and cellular immune responses, viral evasion, inflammation, fibrosis progression, and drug resistance. We are engaged in synthetic biology approaches to rational vaccine development and understanding the limits on the extraordinary genetic variability of HCV.

Current research in the Sean T. Prigge Lab explores the biochemical pathways found in the apicoplast, an essential organelle found in malaria parasites, using a combination of cell biology and genetic, biophysical and biochemical techniques. We are particularly focused on the pathways used for the biosynthesis and modification of fatty acids and associated enzyme cofactors, including pantothenate, lipoic acid, biotin and iron-sulfur clusters. We want to better understand how the cofactors are acquired and used, and whether they are essential for the growth of blood-stage malaria parasites.