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. Author manuscript; available in PMC: 2018 Nov 15.
Published in final edited form as: Prog Retin Eye Res. 2018 Jul 13;67:150–167. doi: 10.1016/j.preteyeres.2018.05.002

Fig. 12.

Fig. 12.

Quantification of PIP protein levels. (A) Human tear samples from healthy and KC donors (n = 32). (B) Human saliva samples from healthy and KC donors (n = 64). (C) HCFs and HKCs in 3-D constructs (n = 6). PIP was significantly downregulated in KC samples, compared to healthy controls, in all three systems; Tears (p < 0.0001), Saliva (p < 0.001), and Cells (p < 0.005).