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- Berglof, A, et al.
(författare)
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Association of bronchopneumonia with sinusitis due to Bordetella bronchiseptica in an experimental rabbit model
- 2000
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Ingår i: American journal of rhinology. - : SAGE Publications. - 1050-6586 .- 1539-6290. ; 14:2, s. 125-130
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Tidskriftsartikel (refereegranskat)abstract
- An animal model for rhinogenic sinusitis was developed in rabbits naturally colonized with Bordetella bronchiseptica. It was found that ostial occlusion predisposes the sinus to invasion with this opportunistic bacterium and subsequent sinusitis as a result of reduced local host defense. In addition to the inflammatory lesions in the sinus, bronchitis and pneumonia were found in 84% of the experimental rabbits, suggesting that ostial dysfunction can also contribute to infectious disease of the lower respiratory tract. In such a model it is possible to study the significance of asymptomatic carriage of potential pathogens after ostial occlusion.
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- Otori, N, et al.
(författare)
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Lectin expression during wound healing of the rabbit sinus mucosa: a study of regenerating epithelium and early polyp formation
- 1998
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Ingår i: ORL. - : S. Karger AG. - 0301-1569 .- 1423-0275. ; 60:6, s. 339-345
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Tidskriftsartikel (refereegranskat)abstract
- Lectin expression during wound healing of the rabbit sinus mucosa was examined. Positive UEA-I staining was evident on squamous or cuboidal as well as columnar regenerating epithelial cells (RE cells). PNA staining of columnar RE cells first became evident after neuraminidase treatment, while squamous or cuboidal RE cells stained positively with PNA alone. Fucosylation within RE cells thus occurred from a relatively early period, and sialylation followed at later stages. Ingrowing epithelial cells of early polyp formation stained negatively with UEA-I, indicating that unfucosylated RE cells may represent aberrant cellular behavior. We concluded that these patterns of lectin staining indicate a functional maturation as well as an integration of regenerating mucosa.
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