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Figure 1

Flowchart of the inclusion of the study subjects.
Flowchart of the inclusion of the study subjects.

Figure 2

A representative CT scan of one CRSwNP patient in frontal and axial plane, CT Lund MacKay score 24.
A representative CT scan of one CRSwNP patient in frontal and axial plane, CT Lund MacKay score 24.

Figure 3

A representative CT scan of one CRSsNP patient in frontal view (left) and sagittal view (right), CT Lund MacKay score 8.
A representative CT scan of one CRSsNP patient in frontal view (left) and sagittal view (right), CT Lund MacKay score 8.

Figure 4

Comparison of mRNA expression levels between eosinophilic CRSwNP and noneosinophilic CRSwNP in (A) T-bet (TBX21) mRNA, (B) GATA3 mRNA, (C) RORC mRNA and (D) FOXP3 mRNA expression. *P< 0.05 by the Mann–Whitney test.
Comparison of mRNA expression levels between eosinophilic CRSwNP and noneosinophilic CRSwNP in (A) T-bet (TBX21) mRNA, (B) GATA3 mRNA, (C) RORC mRNA and (D) FOXP3 mRNA expression. *P< 0.05 by the Mann–Whitney test.

Figure 5

Comparison of mRNA expression levels between CRSwNP and CRSsNP in (A) T-bet (TBX21) mRNA, (B) GATA3 mRNA, (C) RORC mRNA and (D) FOXP3 mRNA expression. *P < 0.05, **P < 0.001, and ***P < 0.0001 by the Mann–Whitney test.
Comparison of mRNA expression levels between CRSwNP and CRSsNP in (A) T-bet (TBX21) mRNA, (B) GATA3 mRNA, (C) RORC mRNA and (D) FOXP3 mRNA expression. *P < 0.05, **P < 0.001, and ***P < 0.0001 by the Mann–Whitney test.

T-bet (TBX21), GATA3, RORC and FOXP3 gene expression (relative mRNA levels) in CRS nasal mucosa

CRSwNP study population (n = 14) CRSwNP (n =14)
CRSsNP study population (n = 8) P*
eosinophilic CRSwNP (n = 10) noneosinophilic CRSwNP (n = 4) P
T-bet 1.6 (0.5–2.4) 2.0 (0.5–3.9) 1.1 (0.5–2.0) 0.43 7.9 (4.4–11.8) 0.0003
GATA3 0.6 (0.3–0.8) 0.7 (0.6–1.3) 0.3 (0.1–0.4) 0.02 4.1 (2.3–9.6) 0.0003
RORC 1.7 (0.5–4.0) 1.7 (0.5–5.0) 1.3 (0.3–3.3) 0.71 6.9 (3.8–13.3) 0.006
FOXP3 1.6 (1.2–3.7) 1.6 (1.1–3.7) 1.6 (1.2–4.5) 0.76 3.8 (1.0–10.8) 0.73

Demographic features, investigations and histopathological findings

CRSwNP (n = 14)
Demographic features, investigations and histopathology CRSwNP study population (n = 14) eosinophilic CRSwNP (n = 10) noneosinophilic CRSsNP (n = 4) P CRSwNP study population (n = 8) P*
Age (years) 52.1 (39.3–62.4) 49.4 (39.3–58.4) 63.3 (37.6–68.3) 0.18 45.2 (33.3–51.3) 0.23
Female sex, no. (%) 5 (35.7) 4 (40) 1 (25) 0.60 4 (50) 0.51
Allergy, no. (%) 3 (21.4) 1 (10) 2 (50) 0.10 1 (12.5) 0.60
Asthma, no. (%) 3 (21.4) 1 (10) 2 (50) 0.31 1 (12.5) 0.84
COPD, no. (%) 1 (7.1) 1 (10) 0 (0) 0.89 0 (0) 0.71
Smoking, no. (%) 3 (21.4) 3 (30) 0 (0) 0.22 1 (12.5) 0.60
CRS duration (y) 4 (3–10) 5.5 (2.5–10) 4 (3–10) 0.91 3 (2.3–9.3) 0.37
VAS (0–10) at inclusion 8 (7.8–9.3) 8.5 (7.8–10) 8 (5.8–8.8) 0.42 9.5 (7.3–10) 0.38
CT Lund MacKay score at inclusion 15 (12.8–18) 14.5 (12.8–18) 17.5 (12.8–23) 0.36 12 (8.3–12.8) N.A.
Endoscopic Lund Kennedy score at inclusion 8 (7–9.3) 8 (7–8.3) 9 (8–10) 0.15 4 (3–4) N.A.
Tissue eosinophilia > 10 / HPF, no. (%) 10 (71.4) 10 (100) 0 (0) N.A. 1 (13) 0.008
Neutrophil infiltration, no. (%) 6 (42.9) 4 (40) 2 (50) 0.73 2 (25) 0.40
Basement membrane thickening ≥ 7.5μm, no. (%) 11 (78.6) 10 (100) 1 (25) 0.002 8 (100) 0.16
Moderate / severe subepithelial oedema, no. (%) 12 (85.7) 9 (90) 3 (75) 0.47 1 (12.5) 0.002
Hyperplastic / papillary change, no. (%) 5 (35.7) 4 (40) 1 (25) 0.51 2 (25) 0.53
Squamous metaplasia, no. (%) 4 (28.6) 3 (30) 1 (25) 0.85 4 (50) 0.31
Fibrosis, no. (%) 10 (71.4) 7 (70) 3 (75) 0.85 7 (87.5) 0.39
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Language:
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Journal Subjects:
Medicine, Clinical Medicine, Radiology, Internal Medicine, Haematology, Oncology