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Science 15 August 1980:
Vol. 209. no. 4458, pp. 813 - 815
DOI: 10.1126/science.6105709

Articles

Science, Vol 209, Issue 4458, 813-815
Copyright © 1980 by American Association for the Advancement of Science


articles

Evidence for L-glutamate as the neurotransmitter of baroreceptor afferent nerve fibers

WT Talman, MH Perrone, and DJ Reis

Microinjection of L-glutamate into the intermediate nucleus tractus solitarii in anesthetized rats elicits hypotension, bradycardia, and apnea, simulating baroreceptor reflexes. Ablation of the nodose ganglion results in selective reduction of high-affinity uptake of L-glutanate in the nucleus tractus solitarii. L-Glutamate may be the neurotransmitter of afferent nerve fibers from arterial baroreceptors.


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