Fig. 2. Nocistatin (NST) in sham-operated rats. Thermal withdrawal latencies (mean ± SEM) (in s) of rats treated with different doses of rNST1–17 injected intrathecally versus time. 10−8and 10−12m/rat, vehicle. Arrow indicates time of rNST1–17 injection. n = 6 to 8 rats per group.