Fig. 1
From: Increased circulating desmosine and age-dependent elastinolysis in idiopathic pulmonary fibrosis
Circulating desmosine levels in IPF patients, based on measurements, and in three other groups, based on virtual age-matched controls calculated with Huang et al.’s equations: non-smoking controls (50 + 2.91*age ng/L; blue), smoking controls (70 + 3.12*age ng/L; green) and COPD patients (50 + 6.57*age ng/L; red) [8]. a) Boxplots showing blood desmosine levels (5th percentile, 1st quartile, median, 3rd quartile, and 95th percentile). Significantly higher blood desmosine levels were found in IPF patients compared to smoking or non-smoking controls and COPD patients. b) Scatterplot in which the black dots represent circulating desmosine measurements and the black line the deduced equation line in IPF patients (76 + 6.76*age ng/L).