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Science 1 May 1981:
Vol. 212. no. 4494, pp. 573 - 575
DOI: 10.1126/science.7010608
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Articles

Science, Vol 212, Issue 4494, 573-575
Copyright © 1981 by American Association for the Advancement of Science

articles

Male vole urine changes luteinizing hormone-releasing hormone and norepinephrine in female olfactory bulb

DE Dluzen, VD Ramirez, CS Carter, and LL Getz

Female prairie voles (Microtus ochrogaster) exposed to a single drop of male urine on the upper lip showed changes in concentrations of luteinizing hormone-releasing hormone (LHRH) and norepinephrine in olfactory bulb tissue; no such changes occurred in dopamine concentration. The changes were measured in the posterior but not the anterior olfactory bulb tissue of females within 1 hour after they were exposed to urine. These females also showed rapid increases in serum concentrations of luteinizing hormone. Females exposed to water on the upper lip showed none of these changes. These results suggest that in this species LHRH and norepinephrine in the olfactory bulb may mediate luteinizing hormone release in response to external (pheromonal) chemical cues.


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