Body & Brain

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illustration of Ebola entering the cell

VIRAL ENTRY  The Ebola virus hijacks a protein called NPC1 to invade a host cell.

pain path

HOW IT HURTS  Rare mutations in the gene PRDM12 prevent proper development of pain-sensing fibers that carry pain signals from the skin to the brain, rendering people impervious to pain, a new study suggests. 

eyelid

EYE-OPENER  Normal skin is a patchwork of cells, many of which carry cancer-driving mutations, a new study finds. In a representation of normal skin, colors indicate the mutated genes and circles reflect the size of skin patches from healthy eyelids carrying the mutation.

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