Novel Biomarker in Spit Linked to Stress, Resilience

Spit conjures a variety of sayings and images for most people, but for Granger and colleagues spit is also serious business. In a recent study, scientists with Arizona State University and the University of Oregon tracked the release of nerve growth factor in saliva (sNGF), finding for the first time that this protein typically linked to the survival, development or function of neurons may be an important player in understanding the body's response to stress.

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