Howard University Mini Medical School

Oswaldo Castro, MD.

Oswaldo Castro, MD, is Emeritus Professor of Medicine at Howard University and Acting Director of the Howard Center for Sickle Cell Disease. He is a hematologist with thirty years of experience in sickle cell disease diagnosis and treatment. His research interest is focused on clinical studies and treatment trials in sickle cell disease.

Sabrina Martyr obtained her B.S. degree in Chemistry at the University of the Virgin Islands. She is a Biological Sciences Research Trainee at the National Institutes of Health (NIH). She works in the Sickle Cell/Nitric Oxide Therapeutics Section of the Critical Care Medicine Department at the NIH. Ms. Martyr conducts research on the use of nitric oxide as a therapy for sickle-cell disease and is an associate investigator on a protocol that combines hydroxyurea with other agents that work as nitric oxide donors.