Gihan Naguib, MBChB

Dr. Streiff's major clinical interest involves the prevention and treatment of venous thromboembolism. He has written several comprehensive reviews on vena caval filters and the management of venous thromboembolism in cancer patients. He chairs the Venous Thromboembolism Guideline Committee for the National Comprehensive Cancer Center Network and has served on international consensus panels to develop standardized guidelines for the use of vena caval filters in the management of venous thromboembolism. As a member of a Johns Hopkins Evidence-Based Practice Center panel, he participated in the development of evidence reports on the management of venous thromboembolism. His research on patients with malignant gliomas identified ABO blood group as a novel risk factor for VTE in this population. A multicenter clinical trial is now nearing completion to confirm these results and identify plasma markers of increased risk for venous thromboembolism in glioma patients. As Medical Director of the Anticoagulation Management Service and Outpatient Clinics, he and his colleagues from the Department of Pharmacy have been actively involved in developing policies and procedures for standardizing anticoagulation management and guidelines for VTE prevention at the Johns Hopkins Medical Institutions. As the consulting Hematologist for the Johns Hopkins Comprehensive Hemophilia Treatment Center, he is actively involved in the diagnosis and treatment of patients with hemophilia, von Willebrand disease and other hemostatic disorders.

Dr. Howard Lederman is a professor of pediatrics at the Johns Hopkins University School of Medicine. He is the director of the Immunodeficiency Clinic, the Pediatric Immunology Laboratory, and the Ataxia-Telangiectasia (A-T) Clinical Center. Dr. Lederman specializes in the evaluation, diagnostic testing and long-term management of patients of all ages who have known or suspected primary immunodeficiency diseases. He is an expert on the use of gamma globulin therapy for a wide variety of disorders. After receiving his M.D. and Ph.D. from the University of Michigan, Dr. Lederman came to Johns Hopkins Children’s Center for a residency in pediatrics, followed by a fellowship in immunology at the Hospital for Sick Children in Toronto. Dr. Lederman’s current research laboratory and clinical research focuses on better understanding and treating patients with ataxia-telangiectasia, a devastating neurological disorder for which there is no cure.He is a member of numerous professional societies, including American Association of Immunologists, the American Society for Microbiology and the Clinical Immunology Society.

David J. Hackam, M.D., Ph.D., is the Garrett Family Professor of Pediatric Surgery at The Johns Hopkins University, and Pediatric Surgeon-in-Chief and co-Director of the Johns Hopkins Children’s Center.Dr. Hackam’s clinical practice focuses on complex neonatal surgery. As pediatric surgeon in chief and co-director of the Childrens Center, Dr. Hackam oversees all perioperative clinical operations that involve children, with a strong emphasis on quality and safety, programmatic growth, and system alignment.Dr. Hackam's research is focused on unraveling the mechanisms of necrotizing enterocolitis, which is the leading cause of death in premature infants from gastrointestinal disease. His work has identified a series of novel pathways that, in response to the abnormal microflora that characterizes the premature intestine, leads to intestinal mucosal barrier breakdown, bacterial translocation, mesenteric vasoconstriction, and NEC. In seeking to translate these findings to clinical studies, we have developed a family of molecules that can prevent NEC development, and which have in part been licensed for clinical development. In additional work, Hackam has developed a prototype artificial intestine, derived from patient-specific intestine stem cells, which we have implanted into pre-clinical models, for the treatment of short bowel syndrome, a devastating complication of NEC. Finally, using single-cell RNA-seq and cell tracking technology, Hackam has worked towards understanding and treating NEC-associated brain injury, a major complication of NEC, and has engineered nanoparticle-packaged molecules that can cross the blood-brain barrier, and reverse the processes that lead to this disease. These studies are funded by three ro1s, a T32, a MIRA (a maximizing investigators’ research award) and 3 industry grants from companies with an interest in NEC treatment and prevention. Dr. Hackam seeks to work with industry partners, as well as nurses, doctors, and families of patients around the country, in order to develop novel regimens to safely and effectively deliver appropriate nutrition to the most vulnerable infants, who are at risk for the development of intestinal disease.