Table 1.

Effects of potassium stimulation on extracellular levels of neurotransmitters and metabolites

Analyte	Basal levels (nm)	Phenotype effect on basal	Levels during stimulation (nm)	Main effect of stimulation	Phenotype × stimulation
Acetylcholine
GTs	312.93 ± 46.25	n.s.	992.89 ± 161.90	F(1,9) = 47.66, p < 0.001	F(1,9) = 5.92, p = 0.038
STs	328.59 ± 93.17		654.19 ± 116.68
Choline
GTs	3620.77 ± 349.77	n.s.	4271.18 ± 527.00	F(1,9) = 3.49, p = 0.10	F(1,9) = 0.01, p = 0.98
STs	4540.33 ± 1608.44		5173.66 ± 1788.80
Adenosine
GTs	88.96 ± 19.56	n.s.	433.95 ± 87.78	F(1,9) = 25.91, p = 0.001	F(1,9) = 8.29, p = 0.018
STs	58.16 ± 17.72		153.85 ± 45.03
GABA
GTs	190.23 ± 61.07	n.s.	4649.34 ± 747.17	F(1,9) = 27.36, p = 0.001	F(1,9) = 0.26, p = 0.62
STs	534.50 ± 247.99		4198.82 ± 1659.85
Glutamate
GTs	9918.11 ± 3578.66	n.s.	26346.11 ± 6299.28	F(1,9) = 25.14, p = 0.001	F(1,9) = 0.25, p = 0.63
STs	17595.26 ± 5371.42		37649.19 ± 9947.55
Norepinephrine
GTs	5.87 ± 2.87	n.s.	27.90 ± 6.01	F(1,9) = 21.47, p = 0.001	F(1,9) = 0.54, p = 0.48
STs	13.69 ± 6.55		30.34 ± 7.33
Serotonin
GTs	8.98 ± 0.46	n.s.	36.18 ± 9.91	F(1,9) = 14.48, p = 0.004	F(1,9) = 1.00, p = 0.34
STs	8.12 ± 2.46		24.00 ± 6.59
Dopamine
GTs	5.41 ± 2.09	n.s.	18.25 ± 5.96	F(1,9) = 23.26, p = 0.001	F(1,9) = 0.13, p = 0.73
STs	8.63 ± 2.83		23.52 ± 5.46

Values were corrected for in vitro probe recovery rates.