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. 2021 Oct 26;22(21):11532. doi: 10.3390/ijms222111532

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© 2021 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 (https://creativecommons.org/licenses/by/4.0/).

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Effect of the selected compounds at 25–75 μM on: (A) ROS production and secretion of (B) IL-1β, (C) TNF-α, and (D) ELA-2 by stimulated human neutrophils. Data expressed as means ± SD of three independent experiments performed with cells isolated from five independent donors. Statistical significance: # p < 0.001 compared to the non-stimulated control; * p < 0.05, ** p < 0.01, *** p < 0.001 compared to the stimulated control. Analytes: QU, quercetin; MQ, miquelianin; DGQ, wintergreenoside A; ECA, (−)-epicatechin; PB2, procyanidin B2; CB1, cinnamtannin B-1; CHA, chlorogenic acid; GT, gaultherin. Positive controls: (A,D) QU, quercetin; (B,C) DEX, dexamethasone.