Cell replacement therapy offers new hope for millions of people affected by retinal degenerations (RDs)—a group of blinding conditions caused by the loss of light-sensing photoreceptor cells in the retina. Among the most promising approaches is the transplantation of stem cell-derived partially differentiated photoreceptor cells, known as precursor cells, to replace those lost to disease. But a persistent hurdle remains: Many of the transplanted cells do not survive long enough to integrate or restore vision.

New research from The University of Toledo suggests that individuals with anemia may have a significantly higher risk of developing severe complications if they contract malaria. The findings were published this month in the peer-reviewed journal Infection and Immunity.

The U.S. Food and Drug Administration announced it will now be requiring updated safety labels for all opioid pain medications to better highlight the risks of long-term use, including misuse, addiction, and overdose.

Complutense University of Madrid-led researchers report that eating earlier in the day blunts the weight gain ordinarily predicted by a high genetic score for obesity.

Killer immune cells destroy cancer cells and cells infected by virus. These CD8+ T cells are activated after detection of viral infection or growth of "non-self" tumor cells. However, in chronic viral infection and cancer, the killer cells often lapse into "exhausted" CD8+ T cells that no longer can stem disease.