Dr. Krishnan, Assistant Professor, received his Ph.D. in Biochemistry-Biotechnology from the Un...iversity of Madras in 2008. He completed his postdoctoral fellowship in the Department of Pediatrics at the University of Alabama at Birmingham and Department of Pediatrics, University of Illinois at Chicago. After he worked as Research Associate in Department of Pediatrics at the University of South Florida, Dr. Krishnan joined the faculty at JHU in May 2018. His lab investigates the pathophysiology of Transfusion-associated Necrotizing Enterocolitis (TANEC) and Systemic Inflammatory Response Syndrome (SIRS) in premature infants who are at high risk of anemia and heavily transfused. Dr. Krishnan is dedicated to understanding the role of monocyte/macrophage in the neonate and investigating their inflammatory phenotype, function during anemia and/or RBC-transfusion associated NEC and SIRS.view more
David Hackam’s laboratory focuses on necrotizing enterocolitis (NEC), a devastating disease of ...premature infants and the leading cause of death and disability from gastrointestinal disease in newborns.
The disease strikes acutely and without warning, causing sudden death of the small and large intestines. In severe cases, tiny patients with the disease are either dying or dead from overwhelming sepsis within 24 hours. Surgical treatment to remove most of the affected gut results in lifelong short gut (short bowel) syndrome.
The Hackam Lab has identified a critical role for the innate immune receptor toll-like receptor 4 (TLR4) in the pathogenesis of necrotizing enterocolitis. The lab has shown that TLR4 regulates the development of the disease by tipping the balance between injury and repair in the stressed intestine of the premature infant. Developing an Artificial Intestine A key goal is to create, in the laboratory, new intestines made from patients’ own cells, which can then be implanted into the patient to restore normal digestive function. This innovative design could transform child development and quality of life in necrotizing enterocolitis survivors without the risks of conventional donor transplant.view more