. 2015 Nov 19;120(2):138–147. doi: 10.1152/japplphysiol.00723.2015

Table 2.

Effect of low-dose dopamine infusion on circulating plasma catecholamines

	Saline	1 μg·kg⁻¹·min⁻¹	2 μg·kg⁻¹·min⁻¹	3 μg·kg⁻¹·min⁻¹	4 μg·kg⁻¹·min⁻¹	Effect of Dose
Norepinephrine, pg/ml
All	230 ± 21	225 ± 20	219 ± 16	225 ± 17	220 ± 16	0.986
High HVR	225 ± 37	212 ± 29	227 ± 18	201 ± 18	242 ± 31	0.804
Low HVR	234 ± 25	233 ± 28	213 ± 24	242 ± 25	204 ± 18	0.413
Epinephrine, pg/ml
All	26 ± 6	31 ± 10	27 ± 9	32 ± 9	32 ± 12	0.744
High HVR	25 ± 9	25 ± 6	19 ± 2	30 ± 7	24 ± 6	0.608
Low HVR	28 ± 9	34 ± 16	33 ± 15	33 ± 15	38 ± 19	0.661
Dopamine, pg/ml
All	21 ± 6	4430 ± 500^*	12145 ± 1390^*^†	19576 ± 1875^*^†^‡	28956 ± 2149^*^†^‡^§	<0.001
High HVR	18 ± 5	4822 ± 791^*	11098 ± 1388^*^†	21171 ± 2406^*^†^‡	31633 ± 2828^*^†^‡^§	<0.001
Low HVR	23 ± 10	4125 ± 664	12960 ± 2264^*^†	18336 ± 2812^*^†^‡	26874 ± 3080^*^†^‡^§	<0.001

Data reported as means ± SE. Norepinephrine (all n = 17; high HVR n = 7; low HVR n = 10), epinephrine (all n = 10; high HVR n = 4; low HVR n = 6), and dopamine (all n = 16; high HVR n = 7; low HVR n = 9). HVR, hypoxic ventilatory response.

P < 0.05 vs. saline,

^†

P < 0.05 vs. 1 μg·kg⁻¹·min⁻¹,

^‡

P < 0.05 vs. 2 μg·kg⁻¹·min⁻¹,

^§

P < 0.05 vs. 3 μg·kg⁻¹·min⁻¹.

Numbers in bold represent statistical significance.