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Conjunctival Goblet cell Density Following Sequential Therapy With Artificial Tear and Cyclosporine 0.05%. Frank A. Bucci, Jr, MD 1 ; Stephen C. Pflugfelder, MD 2 ; Solherny Pangelinan, MD 2. 1 Bucci Laser Vision Institute, Wilkes-Barre, PA; 2 Ocular Surface Center,
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Conjunctival Goblet cell Density Following Sequential Therapy With Artificial Tear and Cyclosporine 0.05% Frank A. Bucci, Jr, MD1; Stephen C. Pflugfelder, MD2; Solherny Pangelinan, MD2 1Bucci Laser Vision Institute, Wilkes-Barre, PA; 2Ocular Surface Center, Baylor College of Medicine, Houston, TX
INTRODUCTION • Inflammation plays a major role in the development of dry eye disease1, which is characterized by abnormal tear film composition.2-4 • Goblet cell are important for normal composition of tear film and may serve as an indicator of ocular surface health. • Goblet cells secrete the soluble mucin MUC5AC, which increases the viscosity and resistance of the tear film against thinning and breakup during the blink cycle.5 • The number of conjunctival goblet cells is decreased in dry eye patients.6 • Soluble mucin concentration is also reduced by 60% in the tear film. • Cyclosporine 0.05% was demonstrated to significantly improve tear production and alleviate disease symptoms in dry eye patients.7 • The aim of this study was to evaluate conjunctival goblet cell density and the levels of tear growth factor and cytokines following sequential therapy with artificial tears and cyclosporine 0.05% in patients with dry eye disease.
METHODS • Multicenter, randomized, prospective trial • Enrolled dry eye patients with • Ocular Surface Disease Index (OSDI) score ≥ 25 • Tear fluorescein break-up time ≤ 8 seconds. • Study treatments: Washouta Systane® or REFRESH Liquigel®b Cyclosporine 0.05% BID -2 0 3 6 9 Weeks Evaluation of goblet cell density in inferior bulbar conjunctiva Determination of growth factors and cytokine levels in tear aPatients received non-preserved artificial tear REFRESH PLUS®. bPatients were randomized to receive either of the artificial tears QID.
METHODS • Impression cytology • Cytology samples were taken from the inferior bulbar conjunctiva using a nitrocellulose membrane. • Membranes were stained with a modified periodic acid–Schiff (PAS) Papanicolaou stain.8 • Goblet cells were counted in 5 (400 x 400 mm) representative microscopic fields in each membrane. • Tear Immunoassays • Epidermal growth factor (EGF) and a panel of 8 inflammatory cytokines/chemokines (IL-1 , IL-1 , IL-2, IL-6, IL-8, IL-12, IL-13, and RANTES) were measured on a Luminex multiplex system using Upstate Biotechnology Beadlyte reagents.
RESULTS Patient Disposition • A total of 19 patients were enrolled • 16 patients completed the study • 9 patients had inadequate samples • 7 patients were included in the analyses
Conjunctival Goblet Cell Density 53.8* *P < .001 compared to weeks 0 and 3 Mean Number of Goblet Cells Per Field 20.8 18.3 Week 0 (Baseline) Week 3 (Artificial tear) Week 9 (Cyclosporine 0.05%)
Tear EGF and Cytokine Levels • An increase in the level of tear IL-13 was noted after the treatment with cyclosporine 0.05% at week 9. This difference, however, did not reach statistical significance. • The levels of tear EGF and other cytokines were not changed after the treatment with artificial tears or cyclosporine 0.05%.
CONCLUSIONS • Cyclosporine 0.05%, but not artificial tears, increased goblet cell density in conjunctiva of dry eye patients. • These findings suggest that chronic dry eye patients may benefit more from cyclosporine 0.05% therapy than artificial tears.
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