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Science 25 October 1996:
Vol. 274. no. 5287, pp. 500 - 501
DOI: 10.1126/science.274.5287.500
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Research News

Marcia Barinaga

How do olfactory neurons signal the brain when they detect an odor? Two sets of mutant animals have shown that a crucial trigger is the intracellular messenger molecule cyclic AMP, which floods olfactory neurons when they are stimulated, opening ion channels and setting off action potentials that convey the signal to the brain.

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Science. ISSN 0036-8075 (print), 1095-9203 (online)