Figure 3. Phenotypes of human MUC5AC-DTA transgenic mice. A: The transgenic mice are smaller than normal mice and have prominent hair loss. B: The bodyweights of transgenic mice are less than those of normal mice at the age of three months. C: The left image shows the normal external eye of the transgenic mouse and the right image shows the fluorescein staining of the cornea. There is no fluorescein staining in the cornea and the conjunctiva of transgenic mice.