Site of Nerve Division Affects Pain-Related Behavior and Spinal Cord Glial Proliferation after C7 Neurotomy in a Rat Stroke Model

Table 4

Changes in mean number of microglia (/mm²) in the C7 neurotomy subgroups.

Day	0 mm (95% CI)	2 mm (95% CI)	4 mm (95% CI)	Intact (95% CI)	F/H
1	35.50 (35.00–37.00) (34.80–36.97)	31.83 ± 1.94 (29.80–33.87)	24.17 ± 1.47 (22.62–25.71)	20.50 ± 1.38 (19.10–21.95)	1.07 (H)	<0.001^#
3	44.33 ± 1.21 (43.06–45.60)	34.33 ± 1.03 (33.25–35.42)	28.00 ± 1.41 (26.52–29.48)	20.33 ± 1.63 (18.62–22.05)	343.80 (F)	<0.001
7	43.50 ± 1.87 (41.54–45.46)	34.50 ± 1.05 (33.40–35.60)	27.67 ± 1.03 (26.58–28.75)	20.33 ± 1.21 (19.06–21.60)	327.91 (F)	<0.001
14	43.33 ± 1.21 (42.06–44.60)	34.17 ± 0.75 (33.38–34.96)	27.50 ± 1.38 (26.05–28.95)	20.33 ± 1.07 (19.25–21.41)	460.36 (F)	<0.001
28	38.67 ± 1.37 (37.23–40.10)	29.00 ± 2.68 (26.19–31.82)	24.17 ± 1.72 (22.36–25.97)	21.00 ± 0.89 (20.06–21.94)	111.15 (F)	<0.001

n = 6 in each group; degree of freedom = 3; F value was calculated by one-way analysis of variance; H value was calculated by the Kruskal–Wallis test. value of the Levene test: day 3, 0.593; day 7, 0.581; day 14, 0.550; day 28, 0.559. Pairwise post hoc comparisons showed a significant difference () between the groups. ^#Pairwise intergroup differences were significant () except for the following: 0 mm–2 mm, 2 mm–4 mm, and 4 mm–intact.