Fig. 1
From: Cobalt nanoparticles induce lung injury, DNA damage and mutations in mice
Cellular and biochemical constituents in bronchoalveolar lavage fluid (BALF). Mice were intratracheally instilled with 50 μg per mouse of Nano-Co or Nano-TiO2. Control mice were instilled with physiological saline. At day 1, 3, 7 and 28 after exposure, BALF was collected and the number of neutrophils (a), CXCL1/KC level (b), LDH activity (c), and the concentration of total protein (d) in BALF were determined. Values are the mean ± SE of 4 ~ 8 mice. * Significant difference from the control, p < 0.05