Work in the Philip Smith Lab explores several key topics within the field of sleep medicine. We investigate the role of obesity and neural control in sleep-disordered breathing as well as the impact of metabolic function on sleep apnea. We also research the ways in which HIV and its treatments impact a patient’s sleep. Our studies have included the effects of HIV and highly active antiretroviral therapy (HAART) on both sleep and daytime function as well as the relationship between systemic inflammation and sleep apnea in men with HIV.

The research activities of the Neuroimmunopathology Laboratory focus on studies of immunological and molecular mechanisms involved in the pathogenesis of neurological disorders. Our main areas of research include studies of neurological complications of HIV infection and AIDS, multiple sclerosis, transverse myelitis, autism and epilepsy. We seek to explore and identify immunopathological mechanisms associated with neurological disease that may be the target of potential therapeutic interventions. The laboratory collaborates with other researchers and laboratories at Johns Hopkins and other institutions in projects related with studies of the interaction between the immune and central nervous systems in pathological processes leading to neurological dysfunction.

Our IndoUS team, based both in Baltimore and in India, specializes in international clinical research (cohort studies and clinical trials), public health implementation science and education in infectious diseases, HIV/AIDS, tuberculosis (TB), vaccine preventable illnesses, antimicrobial resistant infections, and more recently COVID. Since 2003, our work has been focused primarily on India, where we are engaged in several Indo-JHU and international research collaborations. We partner with several leading medical and research institutions in India (e.g. BJGMC, DY Patil, Hinduja Hospital, KEM, Bharati Vidyapeeth, NIRT, JIPMER, CMC, Medanta, IISER, YRG, IIT), as well as others in sub-Saharan Africa, US and Brazil. We are actively involved in the following consortia: 1) Indo-US Vaccine Action Program sponsored RePORT India TB research consortium, which is funded by the US National Institutes of Health (NIH) and the government of India, Department of Biotechnology. 2) RePORT International TB Research Consortium, a multilateral global consortia for TB research, 3) US NIH funded multi-country HIV and TB trials consortia of the AIDS Clinical Trials Group (ACTG) and the International Maternal Pediatric Adolescent AIDS Trials Network (IMPAACT) Network, 4) NIH and AmFAR funded IeDea HIV/TB Working Group and the Treat Asia-IeDEA HIV and TB epidemiology databases, and 5) CDC SHEPHERD AMR studies. Our group has been awarded research grants from the US NIH, US CDC, UNITAID, Indian government, and several philanthropic foundations to investigate infectious diseases of importance to India and beyond.

Research in the Mark Sulkowski Lab focuses on hepatitis B and hepatitis C. We've conducted clinical research related to the management of viral hepatitis, including novel agents. Other studies focus on adult patients at the Johns Hopkins site of the National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK) Hepatitis B Clinical Research Network as well as the National Institute of Allergy and Infectious Diseases Adult AIDS Clinical Trials Group.