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. 2010 Feb 19;7:13. doi: 10.1186/1476-9255-7-13

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Copyright ©2010 Nadworny et al; licensee BioMed Central Ltd.

This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/2.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Immunohistochemical detection of IL-4 in biopsies of DNCB-induced rashes treated with various nanocrystalline silver-derived solutions. Immunohistochemical staining scores for IL-4 are shown after 24 h (A) and 72 h (B) of treatment of negative controls with distilled water, and DNCB-induced porcine contact dermatitis rashes with distilled water (positive controls), or nanocrystalline silver-derived solutions generated at starting pHs of 4, 5.6, 7, or 9. Statistical analyses, which were performed using one-way ANOVAs with Tukey-Kramer Multiple Comparisons post tests, are shown in Table 4. Error bars represent standard deviations.