Figure 2.
Asthma caused the increased GDNF expressions (stained by immunohistochemistry) in the lung. (A) GDNF expressions (brown staining) in the lung tissues; (B) numbers of GDNF positive immunoreactive substances in the lung tissues; (C) GDNF concentration in BALF. **, P<0.01; ***, P<0.001. GDNF, glial cell line-derived neurotrophic factor; BALF, bronchoalveolar lavage fluid.
