"But the identification of an itch receptor in spinal-cord neurons didn't mean those neurons were itch-specific because it was possible that they also could have pain-related genes," says Chen, associate professor of anesthesiology, of psychiatry and of developmental biology. "A key question was whether those GRPR neurons also were transmitting pain signals. We approached that question by injecting a toxic substance that binds to GRPR and then exposing mice to both itchy and painful stimuli."
"We're talking about the most prominent rainfall feature on the planet, one that many people depend on as the source of their freshwater because there is no groundwater to speak of where they live," says Julian Sachs, associate professor of oceanography at the University of Washington and lead author of the paper. "In addition many other people who live in the tropics but farther afield from the Pacific could be affected because this band of rain shapes atmospheric circulation patterns throughout the world."
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