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To evaluate the therapeutic efficacy of topical interleukin-1 receptor antagonist (IL-1Ra) in the treatment of dry eye disease.

Laboratory investigation.

Dry eye disease was induced in C57BL/6 female mice through exposure to a desiccating environment within a controlled environment chamber. Topical formulations containing 5% IL-1Ra, 1% methylprednisolone, 0.05% cyclosporin A, and a vehicle control containing carboxymethylcellulose sodium were applied after the induction of dry eye. Corneal fluorescein staining was performed by a masked observer in the different treatment groups. Immunohistochemical studies were undertaken to enumerate corneal CD11b+ cells, as well as to evaluate corneal lymphangiogenesis. Real-time polymerase reaction was used to quantify the expression of interleukin-1β in the cornea.

A significant decrease in corneal fluorescein …