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SCFAs induced t-PA expression from human primary nasal epithelial cells (PNECs). Submerged PNECs were stimulated with different concentrations of SCFAs for 24 h. Cell lysates were harvested for RNA extraction to analyse t-PA mRNA expression by RT-PCR (n = 4). Data shown are mean ± SEM of 4 independent experiments. *P < .05 when compared to non-stimulated cells
