ATP quantitation correlates with the number of schistosomula.

<p>Correlation between the number of schistosomula (X-axis, logarithmic scale) and the ATP signals (Y-axis, linear scale). A semi-log plot was used to better visualize the data; a linear correlation between schistosomula numbers and ATP signals is represented by the portion of curve comprised between dotted vertical lines. The LLoQ (Lower Limit of Quantification) was defined as a signal greater than three times the background signal. The ULoQ (Upper Limit of Quantification) was defined as the highest signal lying on the linear correlation. RLU = Relative Luminescent Units.