Table 3.

Effects of intra-mNTS microinjection of 5HT_1AR agonist 8-OH-DPAT or 5HT₃R agonist phenylbiguanide on the cardiorespiratory activities

Microinjection	VE, ml/min	VT, ml	fR, breaths/min	MABP, mmHg	HR, beats/min	PetCO2, Torr	TE, s
8-OH-DPAT (n = 7)
Before	260 ± 9	2.3 ± 0.2	117 ± 6	94 ± 2	376 ± 15	38 ± 1	0.33 ± 0.02
After	240 ± 21	2.3 ± 0.1	104 ± 6	97 ± 4	377 ± 17	41 ± 3	0.39 ± 0.04
PBG (n = 7)
Before	266 ± 12	2.5 ± 0.1	109 ± 6	98 ± 5	351 ± 12	39 ± 2	0.33 ± 0.03
After	278 ± 11	2.5 ± 0.1	113 ± 3	92 ± 1	367 ± 10	38 ± 1	0.31 ± 0.01

Values are means ± SE. PBG, phenylbiguanide (5HT₃R agonist).