Researchers at Hong Kong University and the Wellcome Trust Sanger Institute have identified a link between the influenza A viruses’ genetic diversity and severity of the infection.
The immune system is the new focus of much work on traumatic brain injury (TBI). In a challenge to the paradigm that the blood brain barrier prevents harmful leukocytes from entering the brain, a Texas team tried to neutralize the impact of these cells. Peripheral lymphocytes are activated after TBI. They may then act as potential antigen presenting cells and get into the brain, causing cells there to degenerate.
Black women undergoing in vitro fertilization are only about half as likely as white women to become pregnant, and the racial disparity persists even when donor eggs are used. These findings are being presented at the annual meeting of the American Society for Reproductive Medicine, held from Oct. 18 to 22 in Honolulu.