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. 2014 Sep 16;9(9):e107734. doi: 10.1371/journal.pone.0107734

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This is an open-access article distributed under the terms of the Creative Commons Public Domain declaration, which stipulates that, once placed in the public domain, this work may be freely reproduced, distributed, transmitted, modified, built upon, or otherwise used by anyone for any lawful purpose.

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Dilatation of cerebral arterioles to (A) 1.0 µmol/L acetylcholine, (B) 10.0 µmol/L acetylcholine, (C) 0.1 µmol/L nitroprusside, (D) 1.0 µmol/L nitroprusside, (E) 1.0 µmol/L papaverine and (F) 10.0 µmol/L papaverine were measured in Nos2+/+ (open bars) or Nos2−/− (filed bars) mice. 10–15 mice were studied in each group. *P<0.05 compared with mice of same genotype fed the control diet by two-way ANOVA.