Duodenal epithelial transport in functional dyspepsia: Role of serotonin

Figure 4 Gene expression (mRNA) levels differed significantly in duodenal mucosa from functional dyspepsia patients compared to healthy controls. A: HTR3E; B: HTR7; C: SLC4A6; D: TPH1. Empty bars represent patients (n = 10 for HTR3E, SLC4A6 and TPH1, and n = 8 for HTR7) and filled bars represent controls (n = 16 for SLC4A6 and TPH1, n = 15 for HTR3E and n = 13 for HTR7). All levels were measured by quantitative real-time polymerase chain reaction and expressed as mean fold change ± SE relative to the values obtained for a control sample arbitrarily chosen as a reference. P < 0.05, P < 0.01 vs control group.