Literature DB >> 20372170

Impact of arginase II on CBF in experimental cortical impact injury in mice using MRI.

Brittany R Bitner1, Danielle C Brink, Leela C Mathew, Robia G Pautler, Claudia S Robertson.   

Abstract

Traumatic brain injury (TBI) results in reduced cerebral blood flow (CBF) and low levels of the vasodilator nitric oxide (NO) may be involved. Arginase II negatively regulates NO production through competition for the substrate L-arginine. We determined whether arginase II-deficient (ArgII(-/-)) mice would show improved CBF after TBI through arterial spin-labeling magnetic resonance imaging (MRI). The ArgII(-/-) mice exhibit a significantly improved CBF recovery after trauma in the perilesional brain (P=0.0015) and in various other brain regions. In conclusion, arginase II deficiency leads to a better CBF recovery after TBI and implicates arginase II in hemodynamic processes.

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Year:  2010        PMID： 20372170      PMCID： PMC2949199          DOI： 10.1038/jcbfm.2010.47

Source DB:  PubMed          Journal:  J Cereb Blood Flow Metab        ISSN： 0271-678X            Impact factor:   6.200


  12 in total

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