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. 2017 Aug 31;8:636. doi: 10.3389/fphys.2017.00636

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Copyright © 2017 Marini, Santangeli, Saarelainen, Middleton, Chowdhury, Skene, Costa, Porkka-Heiskanen and Montagnese.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

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Coronal brain sections (modified from Paxinos and Watson, 1998) with black spots marking the location of the microdialysis probe tips. All probe tips were located between anterior-posterior levels of +20 and −92 mm with respect to bregma. Target areas include: horizontal diagonal band of Broca (HDB), substantia innominata (SI), magnocellular preoptic area (MCPO), lateral preoptic area (LPO) and the basal nucleus of Meynert (B). The location of probes with tips outside the target area are not shown, and the corresponding rats (n = 2, both on the ammonia-enriched diet) were excluded from the analysis.