Journal article
Pretreatment with feline interferon omega and the course of subsequent infection with feline herpesvirus in cats.
- Haid C Department of Small Animals, Ophthalmology Unit, Vetsuisse Faculty, University of Zürich, Winterhurerstrasse 260, 8057 Zürich, Switzerland.
- Kaps S
- Gönczi E
- Hässig M
- Metzler A
- Spiess BM
- Richter M
- 2007-09-01
Published in:
- Veterinary ophthalmology. - 2007
Administration, Oral
Administration, Topical
Analysis of Variance
Animals
Antibodies, Viral
Antiviral Agents
Cat Diseases
Cats
DNA, Viral
Female
Herpesviridae
Herpesviridae Infections
Interferon Type I
Male
Random Allocation
Virus Replication
English
OBJECTIVE
Recombinant feline interferon omega (rFeIFN-omega), a type I IFN, may have the potential to limit virus replication and associated clinical signs when administered early on in the course of feline herpesvirus type 1 (FHV-1) infection and reactivation, respectively. The effect of rFeIFN-omega pretreatment on the course of subsequent FHV-1 infection in cats was investigated.
ANIMALS STUDIED
Nine SPF cats were divided into an IFN group (n = 5) and a control-group (n = 4).
PROCEDURES
The IFN group was pretreated for 2 days with 10 000 units rFeIFN-omega twice a day topically into both eyes and 20 000 units rFeIFN-omega once a day orally, whereas the control group was mock-treated. Subsequently all cats were infected with FHV-1. Samples for FHV-1 DNA detection and quantitation, virus isolation, and titration of FHV-1 antibodies were collected. Clinical and ocular signs were recorded and scored.
RESULTS
Courses of median individual clinical and ocular scores and virus load did not differ significantly between both groups using anova for repeated measurements. Analysis (anova) of each individual ocular parameter revealed significantly high scores for epithelial keratitis (P = 0.016) in the IFN group compared to the control group. Periods of virus shedding did not differ significantly between both groups using the Wilcoxon rank sum test.
CONCLUSIONS
Results indicated a lack of beneficial effects of rFeIFN-omega pretreatment in the course of primary FHV-1 infection in cats.
Recombinant feline interferon omega (rFeIFN-omega), a type I IFN, may have the potential to limit virus replication and associated clinical signs when administered early on in the course of feline herpesvirus type 1 (FHV-1) infection and reactivation, respectively. The effect of rFeIFN-omega pretreatment on the course of subsequent FHV-1 infection in cats was investigated.
ANIMALS STUDIED
Nine SPF cats were divided into an IFN group (n = 5) and a control-group (n = 4).
PROCEDURES
The IFN group was pretreated for 2 days with 10 000 units rFeIFN-omega twice a day topically into both eyes and 20 000 units rFeIFN-omega once a day orally, whereas the control group was mock-treated. Subsequently all cats were infected with FHV-1. Samples for FHV-1 DNA detection and quantitation, virus isolation, and titration of FHV-1 antibodies were collected. Clinical and ocular signs were recorded and scored.
RESULTS
Courses of median individual clinical and ocular scores and virus load did not differ significantly between both groups using anova for repeated measurements. Analysis (anova) of each individual ocular parameter revealed significantly high scores for epithelial keratitis (P = 0.016) in the IFN group compared to the control group. Periods of virus shedding did not differ significantly between both groups using the Wilcoxon rank sum test.
CONCLUSIONS
Results indicated a lack of beneficial effects of rFeIFN-omega pretreatment in the course of primary FHV-1 infection in cats.
- Language
-
- English
- Open access status
- closed
- Identifiers
-
- DOI 10.1111/j.1463-5224.2007.00550.x
- PMID 17760705
- Persistent URL
- https://sonar.ch/global/documents/14254
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