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Table 2

From: Association of mast cells with lung function in chronic obstructive pulmonary disease

a. The concentration of tryptase positive mast cells (MC-T) per region for patients with COPD and controls

 

Controls

(n = 10)

COPD

(n = 19)

Central airways

  

Epithelium (cells/mm)

0.07 [0.0–0.9]

0.0 [0.0–0.1]

Subepithelial area (cells/mm2)

108.8 [83.9–190.2]

53.7 [25.7–120.8]

Airway smooth muscle (cells/mm2)

32.5 [15.8–49.9]

20.1 [10.5–33.3]

% degranulated mast cells

35.9 [21.9–51.2]

28.0 [22.4–37.4]

Peripheral airways

  

Epithelium (cells/mm)

0.0 [0.0–0.9]

0.0 [0.0–0.2]

Subepithelial area (cells/mm2)

247.9 [73.9–548.2]

184.6 [100.4–282.3]

Airway smooth muscle (cells/mm2)

12.6 [0.0–36.9]

18.4 [0.0–47.6]

Adventitia (cells/mm2)

279.4 [79.2–646.9]

214.9 [107.2–327.2]

% degranulated mast cells

68.6 [41.5–81.4]

67.5 [53.0–84.1]

b. The concentration of chymase positive mast cells (MC-C) per region for patients with COPD and controls

 

Controls

(n = 10)

COPD

(n = 19)

Central airway samples

  

Epithelium (cells/mm)

0.0 [0.0–0.0]

0.0 [0.0–0.3]¶¶

Subepithelial area (cells/mm2)

18.1 [8.2–28.9]

11.0 [4.5–28.3]

Airway smooth muscle (cells/mm2)

10.6 [2.7–15.2]

3.5 [0.0–6.0]

% degranulated mast cells

33.3 [25.7–52.2]

40.0 [26.8–58.3]

Peripheral airways

  

Epithelium (cells/mm)

0.0 [0.0–0.0]

0.0 [0.0–0.2]

Subepithelial area (cells/mm2)

19.4 [0.0–71.8]

54.5 [0.0–160.0]

Airway smooth muscle (cells/mm2)

0.0 [0.0–54.1]

0.0 [0.0–50.7]

Adventitial layer (cells/mm2)

128.0 [44.1–184.0]

68.5 [13.2–162.7]

% degranulated mast cells

66.8 [55.6–93.2]

63.9 [52.1–95.0]

  1. Data are presented as median [interquartile range]; p = 0.035 versus controls; ¶¶p = 0.045 vs controls