Lung cell patches its own DNA on the fly to survive influenza

Scientists at Duke University have identified one kind of lung cell that can hustle to repair its damaged DNA and survive an attack of the influenza A virus while other kinds of cells around it die in droves. The finding reveals more about the battle between cells and viruses at the smallest level, and also may provide some important clues […]

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Thyroid hormone helped our ancestors survive but left us susceptible

Although most victims survive the 735,000 heart attacks that occur annually in the U.S., their heart tissue is often irreparably damaged—unlike many other cells in the body, once injured, heart cells cannot regenerate. According to a new UC San Francisco study, the issue may date back to our earliest mammalian ancestors, which may have lost the ability to regenerate heart […]

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