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Hydroxyproline and desmosine content of lung 21 days after bleomycin. Lung collagen and elastin, as measured by the amount of hydroxyproline and desmosine, respectively, were increased comparably in gelatinase B+/+ and gelatinase B−/− mice 21 days after bleomycin treatment compared to lungs in saline-treated mice. Each bar represents the mean of four or five animals ± SEM.
