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Conjunctival goblet cell density. (A) Representative images of PAS staining and (B) mean gobleT cell densities in the UT, EDE, BSS, 0.05% CsA and 0.1% Gly-Tβ4 groups at day 14. Conjunctival goblet cell density was significantly increased in the Gly-Tβ4 and CsA treatment groups. *P<0.05 vs. EDE group; †P<0.05 vs. BSS group. PAS, periodic acid-Schiff; UT, untreated control; EDE, experimental dry eye; BSS, balanced salt solution; CsA, Cyclosporine A; Gly-Tβ4, glycine-thymosin β4.
