Figure 1.

Gastric emptying studies in Balb/c mice illustrating stability of tests over time and detection of both accelerated and delayed gastric emptying for both solid and liquid test meals. A) Mean T_1/2 values (± SEM) obtained for solid gastric emptying on weeks where there were no interventions plotted versus the age of the mice for three distinct cohorts of mice. B) Mean T_1/2 values (± SEM) obtained for solid gastric emptying of sixteen mice on contiguous weeks where they received an intraperitoneal injection of saline (open bar) or 7.5 mg/kg atropine (closed bar) 30 minutes prior to testing. *P<0.05 T-test compared to saline. C) Mean T_1/2 values (± SEM) obtained for solid gastric emptying of sixteen mice on contiguous weeks where they were exposed to cold (cold stress; closed bar) or room temperature (control; open bar) 30 minutes prior to testing. †P<0.05 T-test compared to control. D) Mean T_1/2 values (± SEM) obtained for liquid gastric emptying of six mice on contiguous weeks where the gavaged meal was water (open bar) or Ensure (shaded and closed bars). ‡ P<0.05 ANOVA with Neuman-Keuls multiple comparisons test compared to water control.