Table 3.

Effect of the LPS and/or BA injection on the neurotransmitter concentrations in plasma and brain

Parameters	Groups	Brain							Plasma
		Tyr	Trp	GABA	Ach	DA	5-HT	KA	Tyr	Trp	GABA
Neurotransmitter concentrations (μmol/L)	C	530	267	8,320	12.9	91.0	0.15	0.31	134	11.4	0.36
	B	605	234	8,070	8.7	87.6	0.15	0.35	210	10.2	0.36
	L	485	224	7,980	21.4	101.9	0.16	0.32	113	12.9	0.35
	BL	514	235	7,991	20.7	100.2	0.16	0.32	137	10.3	0.42
	pooled SE	22	9	103	2.1	5.2	0.01	0.01	12	1.1	0.05
Randomized block design 2-way ANOVA p value	Repeat	0.04	0.78	0.71	0.003	<0.001	0.001	0.31	<0.001	0.99	<0.001
	LPS	0.10	0.23	0.26	0.01	0.24	0.45	0.71	0.02	0.75	0.67
	BA	0.66	0.75	0.21	0.67	0.93	0.85	0.41	0.007	0.41	0.39
	Interaction	0.23	0.68	0.39	0.82	0.7	0.56	0.46	0.07	0.76	0.45

No concentration of 3-Hydroxy kynurenine or adrenaline was detected in the samples

The concentrations of Ach, DA, 5-HT and KA in blood plasma were too low to be detected by the analysis

CO control group, BA Butyrate group, LP Lipopolysaccharide group, BL Butyrate and lipopolysaccharide group, Tyr tyrosine, Trp tryptophan Trp, GABA gamma amino butyric acid, ACh acetylcholine, DA dopamine, 5-HT serotonin, KA kynurenic acid