| Items (Unit) | Controls | Acupuncture groups | Normal | Morphine | HT7 | SI5 | LI5 |
| Total thickness (μm) | 4191.58 ± 3 65.56 | 2259.11 ± 3 03.52a | 3868.91 ± 29 9.41c | 3475.02 ± 3 43.93ac | 3041.15 ± 407.30ac | White pulp thickness (μm) | 456.87 ± 38.90 | 276.50 ± ± 27.6a | 426.47 ± 39.43 | 404.35 ± 25.2, 4ac | 370.24 ± 38.25ac | White pulp numbers/mm2 | 49.00 ± 10.11 | 24.29 ± 4.31e | 42.78 ± 7.76g | 38.44 ± 3.36fg | 34.56 ± 4.33eg |
| Immunolabeled cells (positive cells/mm2) | CD3 | 1208.33 ± 1, 84.94 | 380.00 ± 48, .83e | 850.11 ± 98.2, 5eg | 763.67 ± 86, .00eg | 557.56 ± 82.50e, g | CD4 | 518.00 ± 84.52 | 198.86 ± 29.5, 3a | 452.00 ± 62.24bc | 384.78 ± 68.5, 9ac | 341.89 ± 57.94ac | CD8 | 363.56 ± 51.8, 1 | 82.00 ± 25.46a | 350.00 ± 31.67c | 281.56 ± 34.6, 5ac | 210.22 ± 71.57ac | Foxp3 | 30.00 ± 10.95 | 96.29 ± 13.83a | 36.44 ± 10.38c | 49.33 ± 12.29a, c | 63.78 ± 14.05ac | CD34 | 90.22 ± 17.16 | 10.57 ± 3.60a | 86.67 ± 18.33c | 79.11 ± 10.64c | 47.33 ± 18.38ac | CD45 | 92.22 ± 11.72 | 23.14 ± 8.71a | 76.89 ± 12.93ac | 68.67 ± 10.10a, c | 46.22 ± 10.27ac | iNOS | 264.67 ± 77.2, 6 | 40.86 ± 18.58a | 221.56 ± 62.82c | 167.56 ± 78.8, 7ac | 116.89 ± 50.90ad | TNF-α | 121.11 ± 47.47 | 42.86 ± 4.88e | 106.44 ± 19.51g | 83.33 ± 10.63f, g | 59.56 ± 15.93eg | IL-1β | 123.33 ± 31.2, 7 | 35.71 ± 10.67a | 101.67 ± 18.72bc | 88.67 ± 19.36a, c | 59.56 ± 11.44ad | IL-2 | 195.11 ± 46.25 | 27.71 ± 11.57a | 190.89 ± 30.38c | 120.67 ± 31.6, 5ac | 80.44 ± 17.20ac | IL-4 | 237.56 ± 42.2, 0 | 36.00 ± 13.06a | 225.11 ± 68.78c | 172.89 ± 25.1, 6ac | 124.67 ± 26.27ac | IL-6 | 84.67 ± 12.88 | 11.00 ± 4.20e | 84.87 ± 21.02g | 76.22 ± 10.74g | 57.33 ± 15.49eg | IL-10 | 22.67 ± 9.27 | 264.57 ± 31.4, 7e | 84.00 ± 14.35eg | 134.89 ± 33.1, 8eg | 185.67 ± 39.08eg | IL-12A | 245.33 ± 42.8, 3 | 77.71 ± 21.43a | 217.78 ± 38.36c | 186.33 ± 36.0, 5ac | 157.33 ± 20.78ac | IFN-γ | 149.56 ± 25.0, 0 | 8.29 ± 4.39e | 78.00 ± 11.70eg | 72.22 ± 16.11e, g | 43.11 ± 10.01eg |
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