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. 2016 Aug 3;72(3):730–739. doi: 10.1007/s00248-016-0809-6

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© The Author(s) 2016

Open Access This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.

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Fig. 1 — L. monocytogenes effects on 5-HT uptake. Cells were infected with alive or inactivated L. monocytogenes at MOI 50, 100, and 200 for 1 or 2 h. 5-HT uptake was measured after 6 min incubation with 0.2 μM 5-HT. Control condition corresponds to untreated cells. a Effect of live L. monocytogenes on 5-HT uptake. The results are expressed as the percentage of the uptake control and are the mean ± SE of six biological replicates in seven independent experiments (n = 42). ***P < 0.001 compared with the control. b Effect of heat-killed L. monocytogenes on 5-HT uptake. The results are expressed as the percentage of the uptake control and are the mean ± SE of six biological replicates in seven independent experiments (n = 42). c Effect of L. monocytogenes inactivated by PEF on 5-HT uptake. The results are expressed as the percentage of the uptake control and are the mean ± SE of three biological replicates in four independent experiments (n = 12). d Effect of L. monocytogenes supernatant on 5-HT uptake. The results are expressed as the percentage of the uptake control and are the mean ± SE of three biological replicates in four independent experiments (n = 12)