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  • Title: The cotton rat model for adenovirus ocular infection: antiviral activity of cidofovir.
    Author: Kaneko H, Mori S, Suzuki O, Iida T, Shigeta S, Abe M, Ohno S, Aoki K, Suzutani T.
    Journal: Antiviral Res; 2004 Jan; 61(1):63-6. PubMed ID: 14670595.
    Abstract:
    To determine the antiviral effects of compounds against ocular adenovirus (AdV) infection, we established an animal model of AdV infection in cotton rat eyes. Cotton rat eyes were inoculated intrastromally and topically with four AdV serotypes 4, 5, 8, and 37, and treated topically with 1% HPMPC (cidofovir) eye drops twice a day. The infected corneas were extracted and homogenized, and virus titers in the cornea specimens were determined by a plaque assay. The virus titer in AdV type 5-inoculated eyes peaked on days 0 through 3 after inoculation and virus shedding was detected for 18.0+/-2.8 days. AdV 5 antigen in the infected corneas was demonstrated in the corneal epithelial cells by immunofluorescence stain. However, for AdV serotypes 4, 8, and 37, no evidence of continued virus replication in cotton rat eyes was noted. Specimens from cidofovir-treated eyes infected with AdV 5 demonstrated a statistically significant reduction in the mean virus titer (days 3-15) (P=0.028) and virus shedding duration (P=0.0014), as compared with those of the control group.
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