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  • Title: Rabbit as an animal model of paranasal sinus mycoses.
    Author: Chakrabarti A, Jatana M, Sharma SC.
    Journal: J Med Vet Mycol; 1997; 35(4):295-7. PubMed ID: 9292429.
    Abstract:
    Paranasal sinus mycoses are endemic in rural populations of northern India. To study host-parasite interactions, we developed an animal model of paranasal sinus mycoses. After failure in small animals such as mice and rats, we used New Zealand white rabbits weighing 2.5-3 kg. Inoculum sizes consisted of 0.75-1.0 x 10(8), 0.75-1.0 x 10(7), 0.75-1.0 x 10(6) conidia of a clinical isolate of Aspergillus flavus. The inoculum was injected at a spot 0.5 cm in front of the alveolar process of the maxilla and 0.5 cm below the maxillary process of frontal bone and vertically to a depth of 0.5 cm across the bone directly into the nasal sinus. Paranasal sinus mycoses proven by culture and histopathology developed in 67% of animals injected with 0.75-1.0 x 10(8) conidia and 17% of animals with 0.75 x 10(7) conidia. No lesions were found in the group injected with 0.75-1.0 x 10(6) conidia. Precipitating antibody against culture filtrate antigen was found in rabbits with paranasal sinus mycoses. Therefore, rabbits can be used as an animal model to study paranasal sinus mycoses.
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