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Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)
 
 
 
 
 

Serotonergic neuron stimulation modulates thalamocortical glucose use in the conscious rat.

We have studied the effects, in the conscious rat, of electrical stimulation of the dorsal or median raphe nuclei on integrated functional activity, as assessed by the quantitative 2-deoxyglucose autoradiographic technique. Stimulation of serotonergic neurons elicits metabolic changes in cortical and thalamic regions that are not limited to those structures known to receive the densest serotonergic innervation. The thalamic nuclei that are activated by raphe stimulation include those that subserve the processing of somesthetic, accessory visual, and limbic information. Raphe stimulation increased cortical glucose use in a laminar and columnar pattern, but only in a highly circumscribed region that corresponds to the somatotopic representation of the rat's face and head. These findings indicate that ascending serotonergic neurons play an important modulatory role in the regulation of thalamocortical glucose use, observations that may be of value in the understanding of the etiology and expression of classic migraine.[1]

References

  1. Serotonergic neuron stimulation modulates thalamocortical glucose use in the conscious rat. Cudennec, A., Duverger, D., MacKenzie, E.T., Scatton, B., Serrano, A. J. Cereb. Blood Flow Metab. (1987) [Pubmed]
 
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