Figure 1

Variations in serum choline and LPA levels after incubation. ATX antigen levels were measured in normal human serum (ATX (+)) and ATX-depleted serum (ATX (−)) prepared using biotin-anti-ATX antibody and streptavidin-bound magnetic beads (a). Normal human serum (+)(circle) and ATX-depleted serum (−)(square) were incubated at 37 °C for 1 to 4 hours, and the levels of choline (red) and LPA (blue) were determined (b). Results are given as the mean ± SD (n = 2).