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Fig. 1 | Respiratory Research

Fig. 1

From: Altered protease and antiprotease balance during a COPD exacerbation contributes to mucus obstruction

Fig. 1

Sputum collection and mucin quantification from COPD subjects. Quantification of mucin in sputum obtained from 9 subjects with COPD. a Sputum was collected at the start of an exacerbation of COPD (COPD-ex; week 1) and again 5–6 weeks later (COPD-follow; week 5–6) from the same subjects. Results were compared to mucin concentration in mucus from 11 ETT control mucus samples (control). b The results are shown as mean density of individual samples related to the internal control (=100 % relative concentration). * = significant to “COPD-follow; week 5-6” (t-Test, p < 0.05); # = significant to “control” (Mann Whitney test, p < 0.05)

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Respiratory Research

ISSN: 1465-993X

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