Figure 2. Time-control experiments in unbled controls, demonstrating glutamate efflux from microdialysate before and during maternal saline infusion, mimicking the expected time course of the next day's hemorrhage protocol. In each animal, the mean glutamate concentration in the four periods before saline infusion was used to establish basal efflux. All data are expressed as percent basal efflux plus/minus SE (n = 5).