Secreted frizzled-related protein 4 is a potent tumor-derived phosphaturic agent
J. Clin. Invest. Theresa Berndt, et al. 112:785
doi:10.1172/JCI18563 [Go to this article.]

Figure 3
Effect of the infusion of sFRP-4 on solute excretion in TPTX rats. TPTX rats were administered sFRP-4 (black bars; group 4) at a dose of 0.3 μg/kg/h or vehicle (white bars; group 3) by intravenous infusion over a period of 2 hours. C1 indicates collection period prior to the infusion of sFRP-4 or vehicle. C2 indicates collection period during which sFRP-4 or vehicle was infused. Fractional excretion of inorganic phosphate, sodium, and calcium were measured as described in the text. *P < 0.05.