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The number of positively stained cells for 4-hydroxy-2-nonenal (4-HNE) in the conjunctiva (a) and representative specimens (b) of untreated control (UT), experimental dry eye (EDE), balanced salt solution (BSS), and 0.001%, 0.01%, and 0.1% extract-treated groups 10 days after desiccating stress. ∗ P < 0.05 and † P < 0.05 compared with EDE and BSS-treated groups, respectively.
