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. 2020 Dec 3;9(12):1221. doi: 10.3390/antiox9121221

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© 2020 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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Inhibitory effects of PGFE on PG-LPS induced pro-inflammatory cytokines in HPDL cells. The HPDL cells were pretreated with the indicated concentrations (50–200 μg/mL) of PGFE for 6 h and then stimulated with or without PG-LPS for 24 h. (A) The expression of pro-inflammatory cytokines production was measured by an ELISA kit. (B) The level of pro-inflammatory cytokines mRNA were measured by real-time PCR analysis. * p < 0.05 was considered significant compared to only the PG-LPS treated group.