Scientists believe that
PNH, or Paroxysmal nocturnal hemoglobinuria is an ultra-rare bone marrow failure disease in which red blood cells break apart. Normal red blood cells have a shield of proteins that protect them from coming under attack by the body's own immune system. PNH occurs because that protein shield is missing. PNH is often associated with reduced bone marrow function (low blood counts) caused by aplastic anemia.
Dr. Phil Scheinberg is Chief of Clinical Hematology at the Hospital Sao Jose, Beneficencia Portuguesa de Sao Paolo in Brazil. He received his medical degree in 1995 at the University of Santo Amaro in Sao Paulo, Brazil and completed his residency (1997-2001) at Mount Sinai Medical Center in Miami Beach, FL where he became Medical Chief Resident. Dr. Scheinberg held a Hematology/Oncology Fellowship (2001-2005) before becoming a staff clinician at the Hematology Branch of the National Heart, Lung, and Blood Institute (NHLBI) at the National Institutes of Health (NIH) in Bethesda, MD.