The findings illuminate how signals from photons (particles of light) get amplified in the eye. More importantly, the study provides insights into how the largest family of cell membrane proteins -- G-protein-coupled receptors (GPCRs) -- work in humans. "They're...

Cancer never rests — and neither do those who have devoted their lives to finding new ways to battle this deadly disease. In this Spotlight, we look at some of the most promising cancer studies from the past month.

In addition to insulin, two other types of shots are available for diabetes treatment. Like insulin and diabetes pills, these shots help lower blood sugar. They are an option for people who have not been able to control their blood sugar using other medications....