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. 2015 Mar 19;6(1):36. doi: 10.1186/s13287-015-0026-0

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© Zhang et al.; licensee BioMed Central. 2015

This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly credited. The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated.

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CCR5-overexpressing endothelial progenitor cell treatment increased serum nitric oxide (NO). The serum NO level of ApoE^−/− mice at baseline and 6 weeks after treatment with phosphate-buffered saline, Lenti-EGFP, and Lenti-CCR5 (n = 6, *P <0.05; n = 6). Bars represent mean ± standard deviation. ApoE, apolipoprotein E; CCR5, chemokine (C-C motif) receptor 5; EGFP, enhanced green fluorescent protein; n.s., non-significant.