Figure 1.

Time course of ∆SBP (A), ∆MAP(B), and ∆HR (C), after microinjection of saline, glutamate, and NMDA (MK) and non-NMDA antagonist (GYK) of glutamate receptor into vlPAG nucleus. Data were expressed as mean±SEM; n= 6 (repeated measures ANOVA). ∆MAP: mean arterial pressure, ∆SBP: systolic blood pressure, ∆HR: heart rate, vehicle: saline microinjection, Glu: glutamate, GYK: GYKI-52466, MK: MK801. ***: P<0.001, **: P<0.01, and *: P<0.05 vs vehicle group, ###:P<0.001, ##: P<0.01, and #: P<0.05 vs Glu group