Groups(n – number of mice in group) Collagen type I (ng/right lung lobe) Hydroxyproline (ng/right lung lobe) Total soluble collagen (μg/right lung lobe)
Mice received intratrachealNaCl 0.9% (n=10) 121.1 ± 11.7 2915 ± 240 69.6 ± 6.3
Mice with fibrosis NaCl 0.9% treated (n=10) 233.3 ± 22.4* 8714 ± 651* 127.2 ± 11.4*
Mice with fibrosis spiperone treated (n=10) 156.8 ± 12.1& 5693 ± 298& 101.2 ± 6.1&
Hydroxyproline, collagen type I and total soluble collagen levels were measured in homogenate of right lung lobes from C57BL/6 mice (М ± m). Data represent mean of 2 independent experiments, Hydroxyproline and collagen type I were determined by ELISA according to manufacturer instructions (Cusabio Biotech CO., Ltd, China). The total soluble collagen was determined using a standard curve for the SircolTM assay (Biocolor Ltd, UK) according to manufacturer’s instructions. Results were expressed as μg collagen per right lung. Data represent mean of 2 independent experiments. Results are presented as mean and SEM. * P<0.05 - compared to the mice received intratracheal NaCl 0.9%; & P<0.05 - compared to the mice received intratracheal bleomycin and NaCl 0.9% treated.
Table 3: ELISA assay of hydroxyproline, collagen type I and total soluble collagen level on 21st day after bleomycin treatment.