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. 2022 Mar 24;12:5132. doi: 10.1038/s41598-022-09241-6

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© The Author(s) 2022

Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/.

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Effects of LAS194046 and fluticasone propionate on human neutrophil superoxide anion formation. Concentration-dependent inhibition of N-Formylmethionyl-leucyl-phenylalanine (fMLP)-induced superoxide anion formation by LAS194046 and fluticasone propionate from peripheral blood neutrophils of (A) COPD and (B) severe asthma patients. Neutrophils were pre-incubated with LAS194046 or fluticasone propionate during 30 min followed by cell stimulation with fMLP (1 µM) for up to 45 min. The results are expressed as luminescence values [arbitrary units (AU)] and as area under curve generated by luminescence time-curse data as the mean ± SD (n = 3 each for cells from COPD patients in independent experiments with triplicate samples). A two-way ANOVA was followed by a post hoc Bonferroni test. *p < 0.05 vs. control; ^#p < 0.05 vs. fluticasone propionate.