Fig. 6
Expression of genes related to the transcellular and paracellular transport in duodenal epithelial cells after 4 and 8 weeks of endurance swim training. The levels of mRNA expression were determined by qRT-PCR, and were expressed as log2 mean ± SE. The data were plotted with the corresponding changes, as multiples of the control values. The two dashed lines indicate 2-fold upregulation or downregulation. VDR, nuclear vitamin D receptor; TRPV5/6, transient receptor potential vanilloid family Ca2+ channels 5/6; NCX1, Na+/Ca2+ exchanger 1; PMCA1b, plasma membrane Ca2+-ATPase isoform 1b; NKA, β1-subunit of Na+/K+-ATPase; ZO, zonula occludens