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      Comparison of Antiallergic Drugs in an Experimental Model of Ocular Anaphylaxis

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          Purpose: To compare the efficacy of antiallergic drugs in an experimental ocular anaphylaxis model. Materials and Methods: Fifty-two rats were divided into 8 groups. Dithiothreitol and ovalbumin (OVA) were applied to both eyes of previously OVA-inoculated rats in groups 1–5 and 7. In groups 1–5, antiallergic efficacy of the drugs (lodoxamide, sodium cromoglycate, levacobastine, cimetidine, and diclofenac sodium) instilled on the right eyes were compared with the buffer instilled on the left eyes, measuring the amount of extravasated Evans blue (EB) dye by spectrophotometric analysis. Group 6 served as a control of EB dye extravasations in nonimmunized eyes. Histopathologic examinations for anaphylaxis and controls were done in groups 7 and 8. Results: Only levacobastine and lodoxamide decreased vascular permeability at a significant ratio (46%, p < 0.01 and 31%, p < 0.05, respectively). Conclusion: Levacobastine and lodoxamide but none of the three other drugs mentioned above were found to be effective in decreasing vascular permeability.

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          Author and article information

          S. Karger AG
          April 2003
          27 February 2003
          : 217
          : 2
          : 119-123
          aGülhane Military Medical Academy and Medical School(GATA), Ankara, and bOphthalmology Department, Erzurum Military Hospital, Erzurum, Turkey
          68551 Ophthalmologica 2003;217:119–123
          © 2003 S. Karger AG, Basel

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          Page count
          Figures: 2, Tables: 2, References: 22, Pages: 5
          Original Paper


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