Abstract
Silver nanoparticles have been used in a range of applications and although they are already employed in medicine, there are new, promising possibilities for their utilization. We investigated the potential of silver nanoparticles obtained with the use of blackcurrant extract in vitro in the LPS-stimulated RAW264.7 macrophages and in vivo in the murine DSS-induced colitis model. The examined formulations contained particles of 95nm (Ag95) and 213nm (Ag213) diameter. In vitro, both formulations inhibited nitric oxide (NO) release. In vivo, the preparations alleviated colitis as evidenced by a decreased macroscopic score and myeloperoxidase activity (indicative of neutrophil infiltration). In both cases, the nanoparticles of larger diameter showed better anti-inflammatory properties. Although further tests are required, our results indicate a plausible new use of silver nanoparticles in inflammatory bowel diseases.
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