10.1371/journal.pone.0008393.g002 Evangelos J. Giamarellos-Bourboulis Evangelos J. Giamarellos-Bourboulis Maria Raftogiannis Maria Raftogiannis Anastasia Antonopoulou Anastasia Antonopoulou Fotini Baziaka Fotini Baziaka Pantelis Koutoukas Pantelis Koutoukas Athina Savva Athina Savva Theodora Kanni Theodora Kanni Marianna Georgitsi Marianna Georgitsi Aikaterini Pistiki Aikaterini Pistiki Thomas Tsaganos Thomas Tsaganos Nikolaos Pelekanos Nikolaos Pelekanos Sofia Athanassia Sofia Athanassia Labrini Galani Labrini Galani Efthymia Giannitsioti Efthymia Giannitsioti Dimitra Kavatha Dimitra Kavatha Flora Kontopidou Flora Kontopidou Maria Mouktaroudi Maria Mouktaroudi Garyfallia Poulakou Garyfallia Poulakou Vissaria Sakka Vissaria Sakka Periklis Panagopoulos Periklis Panagopoulos Antonios Papadopoulos Antonios Papadopoulos Kyriaki Kanellakopoulou Kyriaki Kanellakopoulou Helen Giamarellou Helen Giamarellou Production of tumour necrosis factor-alpha (TNFα). Public Library of Science 2013 tumour necrosis factor-alpha 2013-02-21 03:21:23 Figure https://plos.figshare.com/articles/figure/_Production_of_tumour_necrosis_factor_alpha_TNF_945_/540945 <p>Peripheral blood mononuclear cells of 10 healthy volunteers, of 18 patients with flu-like syndrome and of 31 patients infected by the H1N1 virus were stimulated with endotoxins (LPS), phytohemagglutin (PHA), and heat-killed isolates of <i>Candida albicans</i>, of <i>Pseudomonas aeruginosa</i>, of methicillin-resistant <i>Staphylococcus aureus</i> producing Panton-Valentine leukocidin (MRSA-PVL) and of penicillin-susceptible <i>Streptococcus pneumoniae</i>. Superscript “a” denotes statistically significant differences compared with healthy volunteers; superscript “b” denotes statistically significant differences compared with patients with flu-like syndrome.</p>