And if a member of family or bystander witnessed the arrest there and used an AED there, 11.6 % survived to leave a healthcare facility. Weisfeldt, the scholarly research chair for a large network of crisis medical services systems, speculates that patient demographics and severity of their cardiovascular disease likely explain why VT/VF rates will vary between those whose hearts prevent pumping at home and the ones who suffer a meeting in public areas, with people at home being older and much more likely to possess underlying chronic disease than those who are active and attending major sports events. He highlights that many who experienced a cardiac arrest at home had no remaining electric activity in the heart.The analysis received support from two main NIH initiatives: the structural biology plan of the NIH Common Fund and the Proteins Framework Initiative . While a molecule called CD4 may be the principal receptor for HIV, CD4 isn’t enough for the virus to penetrate cells. In 1996, a team of experts at NIH’s National Institute of Allergy and Infectious Illnesses found that CXCR4 functions as a co-receptor by assisting HIV enter cells. Normally, CXCR4 assists activate the disease fighting capability and stimulate cell motion. But when the indicators that activate the receptor aren’t properly regulated, CXCR4 can spur the development and spread of cancers cells.