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. 2012 Nov 15;6:97. doi: 10.3389/fnint.2012.00097

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Copyright © 2012 Simonyan, Feng, Henriquez and Ludlow.

This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in other forums, provided the original authors and source are credited and subject to any copyright notices concerning any third-party graphics etc.

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The bar graphs show the mean number of Fos-positive neurons in the examined brainstem nuclei in the LPS-, vehicle-treated and anesthetic controls. (A) Double asterisks (^**) mark significant FLI in the IRF/PCRF nucleus, while single asterisk (^*) marks a trend in FLI increase in the NTSi nucleus in LPS-treated animals compared to vehicle-treated animals and anesthetic controls. (B) No statistically significant differences between these groups were found within the higher-order nuclei of laryngeal afferents (PAG) and non-specific nuclei of laryngeal control (LC and AP). IRF/PCRF, intermediate/parvicellular reticular formation; NTS, solitary tract nucleus; Sp5, spinal trigeminal nucleus; PAG, periaqueductal gray; LC, locus coeruleus; AP, area postrema; NTSi, interstitial nucleus of the NTS; NTSim, intermediate nucleus of the NTS; NTSm, medial nucleus of the NTS; L, left; R, right.