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. 2019 Apr 3;17(4):209. doi: 10.3390/md17040209

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© 2019 by the authors.

Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).

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Metabolic activity by the resazurin assay on mouse lung fibroblast cells (L929) cells exposed to different concentrations of enzymatic extracts of Osmundea pinnatifida (a) and Sargassum muticum (b). Time of exposure was statistically significant (p < 0.05) for each concentration of extract of both seaweeds. Concentration of extract was not statistically significant (p > 0.05) for S. muticum extracts; for O. pinnatifida extracts, statistically significant differences were obtained between 0 mg/mL (*) and 0.5–2.0 mg/mL (* *) and between 1.5 mg/mL (#) and 4.0 mg/mL (# #), respectively.