Fig. 4From: Lung carcinogenicity of inhaled multi-walled carbon nanotube in ratsCytological and biochemical analyses of bronchoalveolar lavage fluid (BALF). a Cytological analyses. Total cells per 1 ml in the BALF is shown. There is a concentration-dependent increase in the numbers of inflammatory cells, and the numbers of eosinophils, lymphocytes, neutrophils, and macrophages in the males and females exposed to 2 mg/m3 MWNT-7 are significantly increased. **: p < 0.01 by Dunnett’s multiple comparison test. b Biochemical analyses: Total protein (Tp), Lactate dehydrogenase (LDH), and alkaline phosphatase (ALP) levels in the BALF were determined for male and female rats. Error bars indicate the SD for 5 rats. Tp, LDH, and ALP are significantly increased in a concentration-dependent manner in males and females. *: p < 0.05 and **: p < 0.01 by Dunnett’s multiple comparison testBack to article page