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. 2015 Oct 27;10(10):e0141509. doi: 10.1371/journal.pone.0141509

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© 2015 Sun et al

This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are properly credited.

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Fig 2 — Confluent cells were serum starved for 4 h prior to stimulation with LPS (100 ng/ml) and assay for Nrf2 and HO-1 expression at different times. (A, B, C). Time- dependent increase in Nrf2 and HO-1 protein expression after stimulation with LPS (100 ng/ml). Results are means ± SEM of three independent experiments. (D, E, F) Dose-dependent increase of Nrf2 and HO-1 protein expression by LPS after a 6 h incubation time. Results are means ± SEM of three independent experiments and were analyzed by one-way ANOVA followed by Bonferroni post-tests. ***p<0.001 vs. no LPS control.