Figure 3. Increased GPX3 levels are detected in BALF from some patients with HP and sarcoidosis, but do not significantly correlate with lung function, gender, age, or smoking history.

(A) GPX3 protein levels in BALF from patients with various ILD (n = 30) including IPF (n = 7), SRIF (n = 3), HP (n = 15), and sarcoidosis (n = 5) as measured by ELISA. GPX3 levels did not correlate with FVC (B), nor gender (C), nor age (D), nor the patients’ smoking history (E). For the latter, a non-significant trend for higher levels in never smokers is observed.