Effect of negative mood, serum inflammatory factors, miR-155, and brain-derived neurotrophic factor

Table 2 Comparison of serum inflammatory factors between the two groups (mean ± SD, ng/L)

Group	n	TNF-α		IL-1β		IL-6
		Before	After	Before	After	Before	After
Control	250	65.72 ± 5.48	54.89 ± 5.31a	25.74 ± 3.26	21.56 ± 3.12a	51.14 ± 5.39	47.13 ± 5.22a
Observation	250	65.59 ± 5.37	53.62 ± 5.15a	25.69 ± 3.30	20.84 ± 3.05a	51.26 ± 5.40	45.84 ± 5.13a
t		0.268	2.715	0.170	2.609	0.249	2.787
P value		0.789	0.007	0.865	0.009	0.840	0.006

^aP < 0.05 vs specific values against the same group before the intervention.

TNF-α: Tumor necrosis factor α; IL: Interleukin.